Quiz: Anatomy_H8

Question 1

From the following options, choose all statements that correctly describe continuous capillaries.

Choices:

• have a continuous basement membrane
• allow the passage of lipid-soluble molecules
• endothelial cells are joined by tight junctions
• allow the passage of peptides and small proteins
• are found in, for instance, endocrine glands and the spleen

Answers:

• have a continuous basement membrane
• allow the passage of lipid-soluble molecules
• endothelial cells are joined by tight junctions

Comments:

• Correct
• That's right!
• Continue

Question 2

Individuals with Marfan syndrome have mutations in a gene involved in collagen production. They often develop aortic aneurisms. What layer of the arterial wall is most affected by this mutation?

Choices:

• Tunica adventitia
• External elastic lamina
• Tunica media
• Tunica intima
• Endothelium

Answers:

• Tunica adventitia

Comments:

• Correct
• That's right!
• Continue

Question 3

In which layer of the heart wall are the major components of the conducting system of the heart located?

Choices:

• the subendocardial layer
• the epicardium
• the myocardium
• the lamina propria of the endothelial layer

Answers:

• the subendocardial layer

Comments:

• Correct
• That's right!
• Continue

Question 4

Which layer of the heart wall produces pericardial fluid?

Choices:

• the epicardium
• the subendocardial layer
• the myocardium
• the lamina propria of the endothelial layer

Answers:

• the epicardium

Comments:

• Correct
• That's right!
• Continue

Question 5

In which layer of the heart wall are nociceptive nerve endings that respond to ischemia primarily located?

Choices:

• the myocardium
• the epicardium
• the subendocardial layer
• the lamina propria of the endothelial layer

Answers:

• the myocardium

Comments:

• Correct
• That's right!
• Continue

Question 6

Identify the layer indicated by A.

Choices:

• Epicardium

Answers:

• Epicardium

Comments:

• Correct
• That's right!
• Continue

Question 7

The cells lining layer A produce ____________ fluid.

Choices:

• pericardial

Answers:

• pericardial

Comments:

• Correct
• That's right!
• Continue

Question 8

Identify layer. Be specific.

Choices:

• Endocardium
• endocardial layer

Answers:

• Endocardium
• endocardial layer

Comments:

• Correct
• That's right! The endocardium lines the inner surface of the heart wall.
• Continue

Question 9

Specialized fibres are present within this layer, what are they?

Choices:

• Purkinje
• Purkinje fibres
• Purkinje fibre
• purkinje cells

Answers:

• Purkinje
• Purkinje fibres
• Purkinje fibre
• purkinje cells

Comments:

• Correct
• That's right! Purkinje fibres, part of the conducting system of the heart, are within the subendocardial layer.
• Continue

Question 10

Identify layer A. Be specific.

Choices:

• Myocardium

Answers:

• Myocardium

Comments:

• Correct
• That's right! The myocardium is the intermediate layer of the heart wall.
• Continue

Question 11

Identify the structure indicated. Be specific.

Choices:

• Intercalated disc
• Intercalated discs
• Intercalated disc

Answers:

• Intercalated disc
• Intercalated discs
• Intercalated disc

Comments:

• Correct
• That's right! Intercalated discs join adjacent cardiocytes.
• Continue

Question 12

Identify the structure indicated. Be specific.

Choices:

• chordae tendineae

Answers:

• chordae tendineae

Comments:

• Correct
• That's right! Chordae tendinea anchor the valve cusps to the heart wall.
• Continue

Question 13

This structure adheres to the ventricular wall via ____________ muscles.

Choices:

• Papillary

Answers:

• Papillary

Comments:

• Correct
• That's right! Papillary muscles attach chordae tendinea to the ventricular wall.
• Continue

Question 14

What vessel type is depicted. Be specific. (hint: look at the tunica media!)

Choices:

• Elastic Artery

Answers:

• Elastic Artery

Comments:

• Correct
• That's right! The thick tunica media characterized by many elastic lamellae distinguishes elastic arteries from others.
• Continue

Question 15

Identify the blood vessel layer indicated by A. Be specific.

Choices:

• Tunica adventitia
• Tunica externa

Answers:

• Tunica adventitia
• Tunica externa

Comments:

• Correct
• That's right! The tunica adventitia (externa) is a layer of dense irregular CT.
• Continue

Question 16

Identify the blood vessel layer indicated. Be specific.

Choices:

• Tunica intima

Answers:

• Tunica intima

Comments:

• Correct
• That's right! The tunica intima lines the lumenal surface of blood vessels.
• Continue

Question 17

Identify the blood vessel layer indicated by B. Be specific.

Choices:

• Tunica media

Answers:

• Tunica media

Comments:

• Correct
• That's right! The tunica media is the intermediate layer of larger blood vessels and is characterized by smooth muscle.
• Continue

Question 18

What vessel type is depicted. Be specific. (Hint: look at the tunica media!)

Choices:

• Muscular artery

Answers:

• Muscular artery

Comments:

• Correct
• That's right! The thick tunica media consisting of layers of smooth muscle and the presence of a single layer of elastic tissue, the internal elastic lamina, distinguishes this class of vessel.
• Continue

Question 19

Identify the vessel type A.

Choices:

• venule
• venules

Answers:

• venule
• venules

Comments:

• Correct
• That's right! Venules are characterized by only a few smooth muscle cells. They have a thinner wall relative to their overall diameter, as compared to their companion arterioles.
• Continue

Question 20

Identify the vessel type B.

Choices:

• arteriole
• arterioles

Answers:

• arteriole
• arterioles

Comments:

• Correct
• That's right! Arterioles are characterized by 2-3 layers of smooth muscle cells. They have a thicker wall relative to their overall diameter, as compared to their companion venules.
• Continue

Question 21

Identify the vessel type A.

Choices:

• venule
• venules

Answers:

• venule
• venules

Comments:

• Correct
• That's right! Venules are characterized by only a few smooth muscle cells. They have a thinner wall relative to their overall diameter, as compared to their companion arterioles.
• Continue

Question 22

Identify the vessel type B.

Choices:

• arteriole
• arterioles

Answers:

• arteriole
• arterioles

Comments:

• Correct
• That's right! Arterioles are characterized by 2-3 layers of smooth muscle cells. They have a thicker wall relative to their overall diameter, as compared to their companion arterioles.
• Continue

Question 23

Identify the structure outlined. Be specific.

Choices:

• Arteriole

Answers:

• Arteriole

Comments:

• Correct
• That's right! Arterioles are characterized by 2-3 layers of smooth muscle. Unlike venules, they have a thick wall relative to the size of their lumen.
• Continue

Question 24

Identify the structure outlined. Be specific.

Choices:

• Venule
• venule
• Postcapillary venule

Answers:

• Venule
• venule
• Postcapillary venule

Comments:

• Correct
• That's right! Venules are characterized by only a few smooth muscle cells. Unlike arterioles, they have a thin wall relative to the size of their lumen.
• Continue