Quiz: Anatomy_Lab5

Question 1

1. Identify A.

Choices:

• sternohyoid muscle
• omohyoid muscle
• mylohyoid muscle
• sternocleidomastoid muscle

Answers:

• sternohyoid muscle

Comments:

• Correct
• That's right! ‘A’ is the sternohyoid muscle. It originates from the manubrium of sternum and attaches to the hyoid bone. See slide 12 to review.
• Continue

Question 2

2. Identify B.

Choices:

• sternohyoid muscle
• omohyoid muscle
• mylohyoid muscle
• sternocleidomastoid muscle

Answers:

• omohyoid muscle

Comments:

• Correct
• That's right! ‘B’ is the omohyoid muscle, which is lateral to the sternohyoid muscle (A). See slide 12 to review.
• Continue

Question 3

3. Identify C.

Choices:

• sternohyoid muscle
• omohyoid muscle
• mylohyoid muscle
• sternocleidomastoid muscle

Answers:

• mylohyoid muscle

Comments:

• Correct
• That's right! ‘C’ is the mylohyoid muscle. It is located superior to the hyoid bone and therefore is a suprahyoid muscle.
• Continue

Question 4

4. Identify D.

Choices:

• sternohyoid muscle
• omohyoid muscle
• mylohyoid muscle
• sternocleidomastoid muscle

Answers:

• sternocleidomastoid muscle

Comments:

• Correct
• That's right! ’D’ is the sternocleidomastoid muscle. It originates from the manubrium and clavicle and attaches to the mastoid process.
• Continue

Question 5

5. What is the function of muscle A?

Choices:

• When it contracts unilaterally, it turns the head to the contralateral side.
• When it contracts unilaterally, it turns the head to the ipsilateral side.
• When it contracts bilaterally, it flexes the neck.
• When it contracts bilaterally, it extends the neck.

Answers:

• When it contracts unilaterally, it turns the head to the contralateral side.

Comments:

• Correct
• That's right! When the SCM contracts unilaterally, it turns the head to the contralateral side.
• Continue

Question 6

6. Fill in the blank: Identify vein B.

Choices:

• external jugular vein
• external jugular
• external-jugular vein
• external-jugular

Answers:

• external jugular vein
• external jugular
• external-jugular vein
• external-jugular

Comments:

• Correct
• That's right! ‘B’ is the external jugular vein. It begins approximately at the angle of mandible, then crosses the SCM to empty into the subclavian vein.
• Continue

Question 7

7. Identify A.

Choices:

• omohyoid muscle
• sternothyroid muscle
• thyrohyoid muscle
• mylohyoid muscle

Answers:

• omohyoid muscle

Comments:

• Correct
• That's right! The omohyoid muscle (A) is located inferior to hyoid bone. It consists of two muscle bellies, superior and inferior, that are connected by a tendon.
• Continue

Question 8

8. Identify B.

Choices:

• omohyoid muscle
• sternothyroid muscle
• thyrohyoid muscle
• mylohyoid muscle

Answers:

• sternothyroid muscle

Comments:

• Correct
• That's right! The sternothyroid muscle (B) is deep to the omohyoid and sternohyoid muscles. It originates from sternum and attaches to the thyroid cartilage.
• Continue

Question 9

9. Identify C.

Choices:

• omohyoid muscle
• sternothyroid muscle
• thyrohyoid muscle
• mylohyoid muscle

Answers:

• thyrohyoid muscle

Comments:

• Correct
• That's right! The thyrohyoid muscle (C) is deep to the omohyoid muscle (A). It attaches the thyroid cartilage to the hyoid bone.
• Continue

Question 10

10. Identify D.

Choices:

• omohyoid muscle
• sternothyroid muscle
• thyrohyoid muscle
• mylohyoid muscle

Answers:

• mylohyoid muscle

Comments:

• Correct
• That's right! The mylohyoid (D) is a suprahyoid muscle (superior to hyoid bone). The bilaterally paired mylohyoid muscles join at a midline raphe and contribute to the floor of the mouth.
• Continue

Question 11

11. Fill in the blank: Which infrahyoid muscle has been removed in the creation of this prosection?

Choices:

• sternohyoid muscle
• sternohyoid
• sterno-hyoid
• sterno-hyoid muscle

Answers:

• sternohyoid muscle
• sternohyoid
• sterno-hyoid
• sterno-hyoid muscle

Comments:

• Correct
• That's right! Since the sternohyoid muscle is superficial to sternothyroid (B) and thyrohyoid(C) muscles, it must have been removed in the prosection.
• Continue

Question 12

12. What is the innervation of muscles A-C, the infrahyoid muscles?

Choices:

• C1-C3 cervical spinal nerves via the ansa cervicalis
• cranial nerve XI, the accessory nerve
• the mandibular division of the trigeminal nerve, V3
• cranial nerve VII, the facial nerve

Answers:

• C1-C3 cervical spinal nerves via the ansa cervicalis

Comments:

• Correct
• That's right! The infrahyoid muscles are innervated by C1-C3 cervical spinal nerves via the ansa cervicalis.
• Continue

Question 13

13. Fill in the blank: Identify muscle A.

Choices:

• anterior scalene muscle
• anterior scalene
• anterior-scalene
• anterior-scalene muscle

Answers:

• anterior scalene muscle
• anterior scalene
• anterior-scalene
• anterior-scalene muscle

Comments:

• Correct
• That's right! Since the roots of the brachial plexus pass between the middle and anterior scalene, muscle A is the anterior scalene muscle.
• Continue

Question 14

14. Fill in the blank: Identify B.

Choices:

• subclavian artery
• sub-clavian artery

Answers:

• subclavian artery
• sub-clavian artery

Comments:

• Correct
• That's right! ’B’ is the subclavian artery. TIP: the subclavian artery, as well as the roots of the brachial plexus, emerge from the neck posterior to the anterior scalene muscle.
• Continue

Question 1

1. Identify A.

Choices:

• geniohyoid muscle
• mylohyoid muscle
• genioglossus muscle

Answers:

• geniohyoid muscle

Comments:

• Correct
• That's right! ’A’ is the geniohyoid muscle. This muscle, as its name suggests, extends from the genial tubercle to the hyoid bone.
• Continue

Question 2

2. Identify B.

Choices:

• geniohyoid muscle
• mylohyoid muscle
• genioglossus muscle

Answers:

• mylohyoid muscle

Comments:

• Correct
• That's right! ‘B’ is the mylohyoid muscle. This muscle, as its name suggests, extends from the myloid line to the hyoid bone. Its fibres run from side-to-side, forming a sling-like contribution to the floor of the mouth.
• Continue

Question 3

3. Identify C.

Choices:

• geniohyoid muscle
• mylohyoid muscle
• genioglossus muscle

Answers:

• genioglossus muscle

Comments:

• Correct
• That's right! ’C’ is the genioglossus muscle. This muscle, having “glossus” in its name, is an extrinsic muscle of the tongue, and it therefore receives motor fibres from the hypoglossal nerve (CN XII).
• Continue

Question 4

4. What nerve supplies the mucosa at A with general sensation?

Choices:

• greater palatine nerve
• lesser palatine nerve
• lingual nerve
• glossopharyngeal nerve
• nasopalatine nerve

Answers:

• greater palatine nerve

Comments:

• Correct
• That's right! The greater palatine nerve, a branch of the maxillary division of the trigeminal nerve (V2), innervates most of the hard palate. TIP: Remember that general sensation between the eyes and the oral fissure is supplied by branches of V2.
• Continue

Question 5

5. What nerve supplies the mucosa at B with general sensation?

Choices:

• greater palatine nerve
• lesser palatine nerve
• lingual nerve
• glossopharyngeal nerve
• nasopalatine nerve

Answers:

• lesser palatine nerve

Comments:

• Correct
• That's right! The lesser palatine nerve, a branch of the maxillary division of the trigeminal nerve (V2), innervates the soft palate. TIP: Remember that general sensation between the eyes and the oral fissure is supplied by branches of V2.
• Continue

Question 6

6. What nerve supplies the mucosa at C with general sensation?

Choices:

• greater palatine nerve
• lesser palatine nerve
• lingual nerve
• glossopharyngeal nerve
• nasopalatine nerve

Answers:

• lingual nerve

Comments:

• Correct
• That's right! The lingual nerve, a branch of the mandibular nerve of CN V3, innervates the anterior 2/3 of tongue. TIP: Remember that general sensation inferior to the oral fissure is supplied by branches of V3.
• Continue

Question 7

7. What nerve supplies the mucosa at D with general sensation?

Choices:

• greater palatine nerve
• lesser palatine nerve
• lingual nerve
• glossopharyngeal nerve
• nasopalatine nerve

Answers:

• glossopharyngeal nerve

Comments:

• Correct
• That's right! The glossopharyngeal nerve CN IX innervates posterior 1/3 of tongue. TIP: General sensation to the base of the tongue and the pharyngeal wall is supplied by branches of CN IX.
• Continue

Question 8

8. What nerve supplies the mucosa at E with general sensation?

Choices:

• greater palatine nerve
• lesser palatine nerve
• lingual nerve
• glossopharyngeal nerve
• nasopalatine nerve

Answers:

• nasopalatine nerve

Comments:

• Correct
• That's right! The nasopalatine nerve, a branch of the maxillary nerve CN V2, innervates anterior part of palate. TIP: General sensation between the eyes and the oral fissure is supplied by branches of V2.
• Continue

Question 9

9. Identify A.

Choices:

• palatoglossal fold
• palatopharyngeal fold
• location of the palatine tonsil
• location of the lingual tonsil

Answers:

• palatoglossal fold

Comments:

• Correct
• That's right! ’A’ is the palatoglossal fold. This fold overlies the palatoglossus muscle, which, as its name implies, extends from the soft palate to the tongue.
• Continue

Question 10

10. Identify B.

Choices:

• palatoglossal fold
• palatopharyngeal fold
• location of the palatine tonsil
• location of the lingual tonsil

Answers:

• palatopharyngeal fold

Comments:

• Correct
• That's right! ‘B’ is the palatopharyngeal fold. This fold overlies the palatopharyngeus muscle, which, as its name implies, extends from the soft palate to the pharynx.
• Continue

Question 11

11. Identify C.

Choices:

• palatoglossal fold
• palatopharyngeal fold
• location of the palatine tonsil
• location of the lingual tonsil

Answers:

• location of the palatine tonsil

Comments:

• Correct
• That's right! ’C’ is the location of the palatine tonsil. The palatine tonsils are bilaterally paired, and located between the palatoglossal and palatopharyngeal folds.
• Continue

Question 12

12. Identify D.

Choices:

• palatoglossal fold
• palatopharyngeal fold
• location of the palatine tonsil
• location of the lingual tonsil

Answers:

• location of the lingual tonsil

Comments:

• Correct
• That's right! ’D’ is the location of the lingual tonsil. The lingual tonsil is a collection of submucosal lymphoid tissue at the base of the tongue.
• Continue

Question 13

13. Fill in the blank: Taste fibres at A are supplied by the _____________ nerve, cranial nerve ______________. Use the format “name, number in Roman numerals”.

Choices:

• glossopharyngeal, IX

Answers:

• glossopharyngeal, IX

Comments:

• Correct
• That's right! Taste fibres at the posterior 1/3 of tongue are supplied by glossopharyngeal nerve, CN IX.
• Continue

Question 14

14. Fill in the blank: Taste fibres at B are supplied by the _____________ nerve, a branch of the ______________ division of cranial nerve ______________. Use the format, “name, name, number in Roman numeral”.

Choices:

• lingual, mandibular, V
• lingual, mandibular, V3

Answers:

• lingual, mandibular, V
• lingual, mandibular, V3

Comments:

• Correct
• That's right! Taste fibres at the anterior 2/3 of tongue are supplied by the lingual nerve, mandibular division of CN V3.
• Continue

Question 15

15. Identify A.

Choices:

• hard palate
• soft palate
• greater palatine nerve
• lesser palatine nerve
• palatoglossus muscle
• palatopharyngeus muscle
• glossopharyngeal nerve
• superior pharyngeal constrictor
• middle pharyngeal constrictor

Answers:

• hard palate

Comments:

• Correct
• That's right! ’A’ is the hard palate.
• Continue

Question 16

16. Identify B.

Choices:

• hard palate
• soft palate
• greater palatine nerve
• lesser palatine nerve
• palatoglossus muscle
• palatopharyngeus muscle
• glossopharyngeal nerve
• superior pharyngeal constrictor
• middle pharyngeal constrictor

Answers:

• soft palate

Comments:

• Correct
• That's right! ’B’ is the soft palate.
• Continue

Question 17

17. Identify C.

Choices:

• hard palate
• soft palate
• greater palatine nerve
• lesser palatine nerve
• palatoglossus muscle
• palatopharyngeus muscle
• glossopharyngeal nerve
• superior pharyngeal constrictor
• middle pharyngeal constrictor

Answers:

• greater palatine nerve

Comments:

• Correct
• That's right! The greater palatine nerve (C), a branch of the maxillary division of the trigeminal nerve (V2), innervates the hard palate.
• Continue

Question 18

18. Identify D.

Choices:

• hard palate
• soft palate
• greater palatine nerve
• lesser palatine nerve
• palatoglossus muscle
• palatopharyngeus muscle
• glossopharyngeal nerve
• superior pharyngeal constrictor
• middle pharyngeal constrictor

Answers:

• lesser palatine nerve

Comments:

• Correct
• That's right! The lesser palatine nerve (D), a branch of the maxillary division of the trigeminal nerve (V2), innervates the soft palate.
• Continue

Question 19

19. Identify E.

Choices:

• hard palate
• soft palate
• greater palatine nerve
• lesser palatine nerve
• palatoglossus muscle
• palatopharyngeus muscle
• glossopharyngeal nerve
• superior pharyngeal constrictor
• middle pharyngeal constrictor

Answers:

• palatoglossus muscle

Comments:

• Correct
• That's right! ‘E’ is the palatoglossus muscle. As the name suggests, this muscle extends from the soft palate to the tongue.
• Continue

Question 20

20. Identify F.

Choices:

• hard palate
• soft palate
• greater palatine nerve
• lesser palatine nerve
• palatoglossus muscle
• palatopharyngeus muscle
• glossopharyngeal nerve
• superior pharyngeal constrictor
• middle pharyngeal constrictor

Answers:

• palatopharyngeus muscle

Comments:

• Correct
• That's right! ‘F’ is the palatopharyngeus muscle. As the name suggests, this muscle extends from the soft palate to the wall of the pharynx.
• Continue

Question 21

21. Identify G.

Choices:

• hard palate
• soft palate
• greater palatine nerve
• lesser palatine nerve
• palatoglossus muscle
• palatopharyngeus muscle
• glossopharyngeal nerve
• superior pharyngeal constrictor
• middle pharyngeal constrictor

Answers:

• glossopharyngeal nerve

Comments:

• Correct
• That's right! The glossopharyngeal nerve CN IX (G) reaches the base of the tongue by passing between the superior and middle constrictor muscles of the pharynx.
• Continue

Question 22

22. Identify H.

Choices:

• hard palate
• soft palate
• greater palatine nerve
• lesser palatine nerve
• palatoglossus muscle
• palatopharyngeus muscle
• glossopharyngeal nerve
• superior pharyngeal constrictor
• middle pharyngeal constrictor

Answers:

• superior pharyngeal constrictor

Comments:

• Correct
• That's right! The superior pharyngeal constrictor (H) forms the floor of the tonsillar bed.
• Continue

Question 23

23. Identify I.

Choices:

• hard palate
• soft palate
• greater palatine nerve
• lesser palatine nerve
• palatoglossus muscle
• palatopharyngeus muscle
• glossopharyngeal nerve
• superior pharyngeal constrictor
• middle pharyngeal constrictor

Answers:

• middle pharyngeal constrictor

Comments:

• Correct
• That's right! ’I’ is the middle pharyngeal constrictor muscle.
• Continue

Question 24

24. In this image, the tongue has been retracted medially (toward the camera) and inferiorly. Identify A:

Choices:

• hyoglossus muscle
• styloglossus muscle
• mylohyoid muscle
• sublingual salivary gland
• submandibular duct
• submandibular salivary gland
• lingual nerve

Answers:

• hyoglossus muscle

Comments:

• Correct
• That's right! ’A’ is the hyoglossus muscle. As the name suggests, this extrinsic muscle of the tongue extends from the hyoid bone to the tongue.
• Continue

Question 25

25. In this image, the tongue has been retracted medially (toward the camera) and inferiorly. Identify B:

Choices:

• hyoglossus muscle
• styloglossus muscle
• mylohyoid muscle
• sublingual salivary gland
• submandibular duct
• submandibular salivary gland
• lingual nerve

Answers:

• styloglossus muscle

Comments:

• Correct
• That's right! ’B’ is the styloglossus muscle. As the name suggests, this extrinsic muscle of the tongue extends from the styloid process to the tongue.
• Continue

Question 26

26. In this image, the tongue has been retracted medially (toward the camera) and inferiorly. Identify C:

Choices:

• hyoglossus muscle
• styloglossus muscle
• mylohyoid muscle
• sublingual salivary gland
• submandibular duct
• submandibular salivary gland
• lingual nerve

Answers:

• mylohyoid muscle

Comments:

• Correct
• That's right! ’C’ is the mylohyoid muscle. The fibres of this muscle run from side-to-side and form a sling-like component of the floor of the mouth.
• Continue

Question 27

27. In this image, the tongue has been retracted medially (toward the camera) and inferiorly. Identify D:

Choices:

• hyoglossus muscle
• styloglossus muscle
• mylohyoid muscle
• sublingual salivary gland
• submandibular duct
• submandibular salivary gland
• lingual nerve

Answers:

• sublingual salivary gland

Comments:

• Correct
• That's right! ‘D’ is the sublingual salivary gland. As the name suggests, this gland is located inferior to the tongue.
• Continue

Question 28

28. In this image, the tongue has been retracted medially (toward the camera) and inferiorly. Identify E:

Choices:

• hyoglossus muscle
• styloglossus muscle
• mylohyoid muscle
• sublingual salivary gland
• submandibular duct
• submandibular salivary gland
• lingual nerve

Answers:

• submandibular duct

Comments:

• Correct
• That's right! ’E’ is the submandibular duct. The submandibular duct passes medial to the lingual nerve.
• Continue

Question 29

29. In this image, the tongue has been retracted medially (toward the camera) and inferiorly. Identify F:

Choices:

• hyoglossus muscle
• styloglossus muscle
• mylohyoid muscle
• sublingual salivary gland
• submandibular duct
• submandibular salivary gland
• lingual nerve

Answers:

• submandibular salivary gland

Comments:

• Correct
• That's right! ’F’ is the submandibular salivary gland.
• Continue

Question 30

30. In this image, the tongue has been retracted medially (toward the camera) and inferiorly. Identify G:

Choices:

• hyoglossus muscle
• styloglossus muscle
• mylohyoid muscle
• sublingual salivary gland
• submandibular duct
• submandibular salivary gland
• lingual nerve

Answers:

• lingual nerve

Comments:

• Correct
• That's right! ’G’ is the lingual nerve, a branch of the mandibular division of the trigeminal nerve, V3. The lingual nerve passes lateral to the submandibular duct.
• Continue

Question 1

1. The oral cavity consists of the oral ________________ and the oral _____________ ____________. (three words, one space between each)

Choices:

• vestibule cavity proper

Answers:

• vestibule cavity proper

Comments:

• Correct
• That's right! The oral cavity consists of the oral vestibule and the oral cavity proper.
• Continue

Question 2

2. The space outside the teeth, i.e. between the teeth and cheek laterally and between the teeth and lips, anteriorly, is called the __________ __________.

Choices:

• oral vestibule

Answers:

• oral vestibule

Comments:

• Correct
• That's right! The oral vestibule is the space outside the teeth. It is bounded by the teeth and cheek laterally and between the teeth and lips anteriorly.
• Continue

Question 3

3. The space contained within the alveolar processes and teeth is called the __________ __________ ____________.

Choices:

• oral cavity proper

Answers:

• oral cavity proper

Comments:

• Correct
• That's right! The oral cavity proper is the space contained within the alveolar processes and teeth.
• Continue

Question 4

4. The fold of mucus membrane that extends from the gingiva to the upper lip is the __________ __________ ____________.

Choices:

• superior labial frenulum

Answers:

• superior labial frenulum

Comments:

• Correct
• That's right! The superior labial frenulum is the fold of mucus membrane that extends from the gingiva to the upper lip.
• Continue

Question 5

5. The fold of mucus membrane that extends from the gingiva to the lower lip is the __________ __________ ____________.

Choices:

• inferior labial frenulum

Answers:

• inferior labial frenulum

Comments:

• Correct
• That's right! The inferior labial frenulum is the fold of mucus membrane that extends from the gingiva to the lower lip.
• Continue

Question 6

6. The muscle that extends between the palate and the pharynx is the __________ muscle.

Choices:

• palatopharyngeus

Answers:

• palatopharyngeus

Comments:

• Correct
• That's right! The bilaterally paired palatopharyngeus muscles extend from the soft palate to the wall of the pharynx. Upon contraction, the muscle elevates pharynx.
• Continue

Question 7

7. The muscle that extends between the palate and the tongue is the __________ muscle.

Choices:

• palatoglossus

Answers:

• palatoglossus

Comments:

• Correct
• That's right! The palatoglossus muscles are bilaterally paired. They extend from the soft palate to the tongue and elevate tongue upon contraction.
• Continue

Question 8

8. The lateral borders of the oropharyngeal isthmus are the __________ fold and the ____________ fold. (Enter two words separated by one space.)

Choices:

• palatoglossal palatopharyngeal
• palatopharyngeal palatoglossal

Answers:

• palatoglossal palatopharyngeal
• palatopharyngeal palatoglossal

Comments:

• Correct
• That's right! The palatoglossal fold and the palatopharyngeal fold form the lateral borders of the oropharyngeal isthmus.
• Continue

Question 9

9. The superior border of the oropharyngeal isthmus is the __________ ____________ .

Choices:

• soft palate

Answers:

• soft palate

Comments:

• Correct
• That's right! The soft palate forms the superior border of the oropharyngeal isthmus.
• Continue

Question 10

10. The lymphoid structure locates between the palatoglossal and palatopharyngeal folds is the __________ ___________.

Choices:

• palatine tonsil

Answers:

• palatine tonsil

Comments:

• Correct
• That's right! The palatine tonsil is a lymphoid structure located between the palatoglossal and palatopharyngeal folds.
• Continue

Question 11

11. Most of the hard palate receives sensory innervation from the ___________ __________ nerve, a branch of the maxillary nerve, V2.

Choices:

• greater palatine

Answers:

• greater palatine

Comments:

• Correct
• That's right! Most of the hard palate receives sensory innervation from greater palatine nerve, branch of CN V2.
• Continue

Question 12

12. The soft palate receives sensory innervation from the ___________ __________ nerve, a branch of the maxillary nerve, V2.

Choices:

• lesser palatine

Answers:

• lesser palatine

Comments:

• Correct
• That's right! The soft palate receives sensory innervation from the lesser palatine nerve of CN V2.
• Continue

Question 13

13. The anterior aspect of the hard palate receives sensory innervation from the ___________ nerve, a branch of the maxillary nerve, V2.

Choices:

• nasopalatine

Answers:

• nasopalatine

Comments:

• Correct
• That's right! The nasopalatine branch of maxillary nerve provides sensory innervation to the anterior aspect of the hard palate.
• Continue

Question 14

14. The palate receives its blood supply from the ___________ artery, a branch of the maxillary artery.

Choices:

• palatine

Answers:

• palatine

Comments:

• Correct
• That's right! The palate receives its blood supply from the palatine branch of the maxillary artery.
• Continue

Question 15

15. The muscle in the floor of the mouth that extends from the mylohyoid line to the hyoid bone is the ___________ muscle.

Choices:

• mylohyoid

Answers:

• mylohyoid

Comments:

• Correct
• That's right! The mylohyoid muscle extends from the mylohyoid line to the hyoid bone.
• Continue

Question 16

16. The muscle in the floor of the mouth that extends from the midline of the interior mandible to the hyoid bone is the ___________ muscle.

Choices:

• geniohyoid

Answers:

• geniohyoid

Comments:

• Correct
• That's right! The geniohyoid muscle extends from the midline of the inferior mandible to the hyoid bone.
• Continue

Question 17

17. The midline mucosal fold in the floor of the mouth that extends to the inferior surface of the tongue is the ___________ ___________.

Choices:

• lingual frenulum

Answers:

• lingual frenulum

Comments:

• Correct
• That's right! The lingual frenulum is a mucosal fold that connects the inferior surface of the tongue to the floor of the mouth.
• Continue

Question 18

18. The ________________________ duct opens on either side of the lingual frenulum.

Choices:

• submandibular

Answers:

• submandibular

Comments:

• Correct
• That's right! The submandibular duct opens into the sublingual caruncle, which lies on either side of the lingual frenulum.
• Continue

Question 19

19. The ________________________ muscles of the tongue are entirely contained within it, and have no attachment to surrounding skeletal elements.

Choices:

• intrinsic

Answers:

• intrinsic

Comments:

• Correct
• That's right! The intrinsic muscles of the tongue are entirely contained within the tongue, with no attachment to surrounding skeletal structures. These muscles act to shape the tongue.
• Continue

Question 20

20. The ________________________ muscles of the tongue extend to it from surrounding skeletal elements, and function to move the tongue.

Choices:

• extrinsic

Answers:

• extrinsic

Comments:

• Correct
• That's right! The extrinsic muscles of the tongue have one bony attachment and the other end inserts into the tongue. These muscles act to move the tongue.
• Continue

Question 21

21. The intrinsic and most of the extrinsic muscles of the tongue are innervated by the ___________________ nerve, cranial nerve _____. (Enter a word and a Roman numeral separated by a single space.)

Choices:

• hypoglossal XII
• hypoglossal 12

Answers:

• hypoglossal XII
• hypoglossal 12

Comments:

• Correct
• That's right! The hypoglossal nerve (CN XII) innervates the intrinsic and most of the extrinsic muscles of the tongue.
• Continue

Question 22

22. The floor of the mouth receives sensory innervation from the ______________ nerve, a branch of the mandibular division of the trigeminal nerve.

Choices:

• lingual

Answers:

• lingual

Comments:

• Correct
• That's right! The floor of the mouth receives sensory innervation from lingual nerve, a branch of the mandibular division of trigeminal nerve.
• Continue

Question 23

23. The mandibular teeth receive sensory innervation from the ______________ ______________ nerve, a branch of the mandibular division of the trigeminal nerve.

Choices:

• inferior alveolar

Answers:

• inferior alveolar

Comments:

• Correct
• That's right! The mandibular teeth are innervated by the inferior alveolar nerve, a branch of the mandibular division of trigeminal nerve (CN V3).
• Continue

Question 24

24. Taste fibres from the anterior 2/3 of the tongue come from the _____________ ______________, a branch of the facial nerve, cranial nerve VII.

Choices:

• chorda tympani

Answers:

• chorda tympani

Comments:

• Correct
• That's right! Chorda tympani, a branch of facial nerve (CN VII), carries taste fibres to the anterior 2/3 of the tongue.
• Continue

Question 25

25. Parasympathetics to the floor of the mouth, including to the submandibular and sublingual glands, come from the _____________ ______________, a branch of the facial nerve, cranial nerve VII.

Choices:

• chorda tympani

Answers:

• chorda tympani

Comments:

• Correct
• That's right! Chorda tympani, a branch of facial nerve (CN VII), also carries parasympathetics to the floor of the mouth, in addition to taste fibres to ant 2/3 of tongue.
• Continue

Question 26

26. At what spinal level are sympathetic preganglionic cell bodies located that innervate targets in the face and head? Answer with a single letter and number.

Choices:

• T1

Answers:

• T1

Comments:

• Correct
• That's right! Sympathetic preganglionic cell bodies that innervate targets in face and head are located at spinal level T1.
• Continue

Question 27

27. Sympathetic postganglionic cell bodies that innervate targets in the face are located in the _____________ ______________ ganglion.

Choices:

• superior cervical

Answers:

• superior cervical

Comments:

• Correct
• That's right! Sympathetic preganglionic fibres from T1 synapse with sympathetic postganglionic cell bodies in superior cervical ganglion, which then innervate targets in face.
• Continue

Question 28

28. The bilaterally-paired openings between the nasal cavities and the nasopharynx are the ______________________.

Choices:

• choanae

Answers:

• choanae

Comments:

• Correct
• That's right! The choanae are bilaterally-paired openings on either side of nasal septum, between nasal cavities and nasopharynx.
• Continue

Question 29

29. The bony plate between the choanae is the _____________ ______________.

Choices:

• nasal septum

Answers:

• nasal septum

Comments:

• Correct
• That's right! The bony plate between the choanae is the nasal septum.
• Continue

Question 30

30. The floor of the nasal cavity is formed by the ___________ ____________.

Choices:

• hard palate

Answers:

• hard palate

Comments:

• Correct
• That's right! The floor of the nasal cavity is formed by the hard palate.
• Continue

Question 31

31. The medial wall of the nasal cavity is formed by the __________ __________.

Choices:

• nasal septum

Answers:

• nasal septum

Comments:

• Correct
• That's right! The medial wall of the nasal cavity is formed by the nasal septum.
• Continue

Question 32

32. The choanae are bordered laterally by the ___________ bone.

Choices:

• sphenoid

Answers:

• sphenoid

Comments:

• Correct
• That's right! The choanae are bordered laterally by the sphenoid bone.
• Continue

Question 33

33. Cranial nerve I, the olfactory nerves, pass through the _____________ plate of the ______________ bone. (Enter two words separated by one space.)

Choices:

• cribriform ethmoid

Answers:

• cribriform ethmoid

Comments:

• Correct
• That's right! The olfactory nerves (CN I) pass through the cribriform plate of the ethmoid bone.
• Continue

Question 34

34. The superior, middle and inferior nasal ___________ project into the nasal cavities from their lateral wall.

Choices:

• conchae

Answers:

• conchae

Comments:

• Correct
• That's right! The superior, middle and inferior nasal conchae project into the nasal cavities from their lateral wall.
• Continue

Question 35

35. The spaces between the nasal conchae are the nasal _______________.

Choices:

• meatuses

Answers:

• meatuses

Comments:

• Correct
• That's right! The spaces between the nasal conchae are the nasal meatuses.
• Continue

Question 36

36. The space above the superior nasal concha is the _______________ recess.

Choices:

• sphenoethmoidal
• spheno-ethmoidal
• sphenoethmoid
• spheno-ethmoid

Answers:

• sphenoethmoidal
• spheno-ethmoidal
• sphenoethmoid
• spheno-ethmoid

Comments:

• Correct
• That's right! The sphenoethmoidal recess is the space above the superior nasal concha.
• Continue

Question 37

37. The bones that form the nasal septum are the _________________ _________________ of the _________________ bone and the _________________. (Enter four words, each separated by one space.)

Choices:

• perpendicular plate ethmoid vomer

Answers:

• perpendicular plate ethmoid vomer

Comments:

• Correct
• That's right! The perpendicular plate of the ethmoid bone and the vomer form the bony components of the nasal septum.
• Continue

Question 38

38. The opening between the pterygopalatine fossa and the nasal cavity, through which nerves and blood vessels pass, is the ___________________ foramen.

Choices:

• sphenopalatine

Answers:

• sphenopalatine

Comments:

• Correct
• That's right! The sphenopalatine foramen is the opening that connects the pterygopalatine fossa and the nasal cavity.
• Continue

Question 39

39. The _______________ nerve, a branch of the maxillary division of the trigeminal nerve, V2, supplies sensory innervation to much of the nasal septum.

Choices:

• nasopalatine

Answers:

• nasopalatine

Comments:

• Correct
• That's right! The nasopalatine nerve, a branch of CN V2, supplies sensory innervation to most of the nasal septum.
• Continue

Question 40

40. The _______________ artery, a branch of the maxillary artery, enters the nasal cavity through the sphenopalatine foramen.

Choices:

• sphenopalatine

Answers:

• sphenopalatine

Comments:

• Correct
• That's right! The sphenopalatine artery enters the nasal cavity through the sphenopalatine foramen.
• Continue

Question 41

41. The _______________ ______________________ nerve, a branch of the facial nerve, CN VII, carries the parasympathetic preganglionic fibres that innervate structures in the territory of the maxillary nerve, V2.

Choices:

• greater petrosal

Answers:

• greater petrosal

Comments:

• Correct
• That's right! The greater petrosal nerve, a branch of the facial nerve, carries parasympathetic preganglionic fibres that will synapse at pterygopalatine ganglion. The postganglionic fibres will then innervate structures in CN V2 territory.
• Continue

Question 42

42. The _______________ ganglion contains the parasympathetic postganglionic cell bodies that innervate structures in the territory of the maxillary nerve, V2.

Choices:

• pterygopalatine

Answers:

• pterygopalatine

Comments:

• Correct
• That's right! The greater petrosal nerve synapse at the pterygopalatine ganglion, which contains the parasympathetic postganglionic cell bodies.
• Continue

Question 1

1. Identify A.

Choices:

• vomer
• perpendicular plate of the ethmoid bone
• sphenoid bone
• nasal bone
• frontal bone

Answers:

• vomer

Comments:

• Correct
• That's right! The perpendicular plate of ethmoid bone and the vomer (A) form the bony portion of the nasal septum.
• Continue

Question 2

2. Identify B.

Choices:

• vomer
• perpendicular plate of the ethmoid bone
• sphenoid bone
• nasal bone
• frontal bone

Answers:

• perpendicular plate of the ethmoid bone

Comments:

• Correct
• That's right! The perpendicular plate of ethmoid bone (B) and the vomer (A) form the bony portion of the nasal septum.
• Continue

Question 3

3. Identify C.

Choices:

• vomer
• perpendicular plate of the ethmoid bone
• sphenoid bone
• nasal bone
• frontal bone

Answers:

• sphenoid bone

Comments:

• Correct
• That's right! The body of the sphenoid bone (C) forms the superior border of a choana. It also contributes to the roof of nasal cavity.
• Continue

Question 4

4. Identify D.

Choices:

• vomer
• perpendicular plate of the ethmoid bone
• sphenoid bone
• nasal bone
• frontal bone

Answers:

• nasal bone

Comments:

• Correct
• That's right! The nasal bone (D) contributes to the formation of the roof of nasal cavity.
• Continue

Question 5

5. Identify E.

Choices:

• vomer
• perpendicular plate of the ethmoid bone
• sphenoid bone
• nasal bone
• frontal bone

Answers:

• frontal bone

Comments:

• Correct
• That's right! ‘E’ is the frontal bone. In the image, the space within it, is the frontal sinus.
• Continue

Question 6

6. Identify A.

Choices:

• middle concha
• superior concha
• palatine process of the maxillary bone
• palatine bone
• inferior concha

Answers:

• middle concha

Comments:

• Correct
• That's right! ’A’ is the middle concha.
• Continue

Question 7

7. Identify B.

Choices:

• middle concha
• superior concha
• palatine process of the maxillary bone
• palatine bone
• inferior concha

Answers:

• superior concha

Comments:

• Correct
• That's right! ’B’ is the superior concha.
• Continue

Question 8

8. Identify C.

Choices:

• middle concha
• superior concha
• palatine process of the maxillary bone
• palatine bone
• inferior concha

Answers:

• palatine process of the maxillary bone

Comments:

• Correct
• That's right! The palatine process of the maxillary bone (C) forms the anterior portion of the hard palate.
• Continue

Question 9

9. Identify D.

Choices:

• middle concha
• superior concha
• palatine process of the maxillary bone
• palatine bone
• inferior concha

Answers:

• palatine bone

Comments:

• Correct
• That's right! The palatine bone (D) forms the posterior 1/3 of the hard palate.
• Continue

Question 10

10. Identify E.

Choices:

• middle concha
• superior concha
• palatine process of the maxillary bone
• palatine bone
• inferior concha

Answers:

• inferior concha

Comments:

• Correct
• That's right! The inferior concha is ‘E’. The inferior concha is a separate bone that articulates with the maxillary bone, whereas the superior and middle conchae are parts of ethmoid bone.
• Continue

Question 11

11. Identify A.

Choices:

• middle meatus
• inferior meatus
• sphenoethmoid recess
• superior meatus
• sphenoid air sinus

Answers:

• middle meatus

Comments:

• Correct
• That's right! The middle meatus (A) is the space between the middle and inferior conchae.
• Continue

Question 12

12. Identify B.

Choices:

• middle meatus
• inferior meatus
• sphenoethmoid recess
• superior meatus
• sphenoid air sinus

Answers:

• inferior meatus

Comments:

• Correct
• That's right! The inferior meatus (B) is the space between inferior concha and the floor of nasal cavity.
• Continue

Question 13

13. Identify C.

Choices:

• middle meatus
• inferior meatus
• sphenoethmoid recess
• superior meatus
• sphenoid air sinus

Answers:

• sphenoethmoid recess

Comments:

• Correct
• That's right! The sphenoethmoid recess (C) is the region of the nasal cavity superior to the superior concha and anterior to the body of sphenoid bone.
• Continue

Question 14

14. Identify D.

Choices:

• middle meatus
• inferior meatus
• sphenoethmoid recess
• superior meatus
• sphenoid air sinus

Answers:

• superior meatus

Comments:

• Correct
• That's right! The superior meatus (D) is the space between superior and middle conchae.
• Continue

Question 15

15. Identify E.

Choices:

• middle meatus
• inferior meatus
• sphenoethmoid recess
• superior meatus
• sphenoid air sinus

Answers:

• sphenoid air sinus

Comments:

• Correct
• That's right! ‘E’ is the sphenoid air sinus.
• Continue

Question 16

16. Area A is supplied by the lateral nasal branches of the _______________ artery.

Choices:

• sphenopalatine

Answers:

• sphenopalatine

Comments:

• Correct
• That's right! Area A, in the region of the middle concha, is supplied by the lateral nasal branches of the sphenopalatine artery.
• Continue

Question 17

17. Area B is supplied by the ____________ ___________ branches of the ophthalmic division of the trigeminal nerve, V1.

Choices:

• anterior ethmoidal
• anterior ethmoidal

Answers:

• anterior ethmoidal
• anterior ethmoidal

Comments:

• Correct
• That's right! The anterior portion of the lateral wall of nasal cavity (Area B) is supplied by the anterior ethmoidal nerves, branches of CN V1.
• Continue

Question 18

18. Which openings from the pterygopalatine fossa lead to the oral cavity? Choose all that apply.

Choices:

• lesser palatine canal
• greater palatine canal
• pterygoid canal
• sphenopalatine foramen
• inferior orbital fissure
• foramen ovale
• pterygomaxillary fissure

Answers:

• lesser palatine canal
• greater palatine canal

Comments:

• Correct
• That's right! The greater and lesser palatine canals lead from the pterygopalatine fossa to the oral cavity.
• Continue

Question 19

19. What openings lead from the cranial cavity to the pterygopalatine fossa? Choose all that apply.

Choices:

• pterygoid canal
• foramen rotundum
• lesser palatine canal
• greater palatine canal
• sphenopalatine foramen
• inferior orbital fissure
• pterygomaxillary fissure

Answers:

• pterygoid canal
• foramen rotundum

Comments:

• Correct
• That's right! The foramen ovale & pterygoid canal lead from the cranial cavity to the pterygopalatine fossa.
• Continue

Question 20

20. Match the remaining openings in the pterygopalatine fossa with the space to which it leads.

Choices:

• infratemporal fossa
• orbit (duh)
• nasal cavity
• cranial cavity
• oral cavity

Answers:

• infratemporal fossa
• orbit (duh)
• nasal cavity
• cranial cavity
• oral cavity

Comments:

• Correct
• That's right! The matches are: pterygomaxillary fissure – infratemporal fossa; inferior orbital fissure – orbit (duh); sphenopalatine foramen – nasal cavity; pterygoid canal - cranial cavity; greater and lesser palatine canals – oral cavity.
• Continue