Quiz: Anatomy_H12

Question 1

Choose one INCORRECT statement regarding the uterine cycle.

Choices:

• The secretory phase of the uterine cycle is stimulated primarily by rising estrogen levels.
• During the proliferative phase, the functional zone of the endometrium regenerates from the basal zone.
• The proliferative phase of the uterine cycle coincides with the follicular phase of the ovarian cycle.
• The bases of the uterine glands remain intact following menstruation.

Answers:

• The secretory phase of the uterine cycle is stimulated primarily by rising estrogen levels.

Comments:

• Correct
• That's right! The secretory phase of the uterine cycle is stimulated by progesterones secreted by the corpus luteum.
• Continue

Question 2

2. Choose one INCORRECT statement regarding the follicular phase of the ovarian cycle.

Choices:

• Between individuals, it's duration is reliably 14 days long.
• In a given cycle, while many primordial follicles become primary follicles, usually only one becomes a tertiary follicle.
• Thecal cells are derived from the stroma surrounding the follicle.
• Granulosa cells secrete follicular fluid.

Answers:

• Between individuals, it's duration is reliably 14 days long.

Comments:

• Correct
• That's right! The follicular phase of the ovarian cycle is, on average, 14 days in duration, however it varies between individuals from 7 to 21 days.
• Continue

Question 3

Which of the following statements is true of the basal layer of the endometrium, but not its functional layer?

Choices:

• It contains the cells that replace the surface epithelium after menstruation.
• It goes through regular cycles of thickening and shedding.
• It relies primarily on the spiral arteries for its blood supply.
• Epithelial cells are absent.

Answers:

• It contains the cells that replace the surface epithelium after menstruation.

Comments:

• Correct
• That's right! The functional layer, including its epithelial components, regenerate monthly from the basal layer.
• Continue

Question 4

Choose one INCORRECT statement regarding the structure / function of the uterine tubes.

Choices:

• Their outermost layer is an adventitia.
• The ovum is nourished by the secretions of the ovarian mucosa.
• The Fallopian tube opens into the peritoneal cavity.
• Peristaltic contraction of its muscularis propels fluid and the ovum toward the uterus.

Answers:

• Their outermost layer is an adventitia.

Comments:

• Correct
• That's right! The uterine tubes are intraperitoneal, supported by the mesosalpinx. Their outermost layer is a serosa.
• Continue

Question 5

Identify A.

Choices:

• Tunica albuginea

Answers:

• Tunica albuginea

Comments:

• Correct
• That's right! This is the tunica albuginea. It is a dense irregular connective tissue capsule that surrounds the ovary. Its high collagen content accounts for its eosinophilic appearance.
• Continue

Question 6

Identify structures B. Be specific.

Choices:

• Primordial follicles
• Primordial follicle

Answers:

• Primordial follicles
• Primordial follicle

Comments:

• Correct
• That's right! These are primordial follicles, which consist of primary oocytes surrounded by a single layer of flattened follicular cells.
• Continue

Question 7

Identify A.

Choices:

• Primary oocyte
• nucleus of primary oocyte

Answers:

• Primary oocyte
• nucleus of primary oocyte

Comments:

• Correct
• That's right! This is a primary oocyte.
• Continue

Question 8

Identify B.

Choices:

• Zona pellucida

Answers:

• Zona pellucida

Comments:

• Correct
• That's right! The zona pellucida is an acellular layer that separates the primary oocyte from the surrounding granulosa cells. It contains the sperm receptors ZP3 and ZP4.
• Continue

Question 9

Identify C.

Choices:

• Granulosa cells
• Granulosa cell
• Stratum granulosum

Answers:

• Granulosa cells
• Granulosa cell
• Stratum granulosum

Comments:

• Correct
• That's right! Granulosa cells surround the oocyte in a primary follicle.
• Continue

Question 10

Identify A.

Choices:

• Corpus albicans

Answers:

• Corpus albicans

Comments:

• Correct
• That's right! The corpus albicans (“white body”) forms from the remnants of the corpus luteum. It is scar tissue and is therefore white due to the presence of collagen.
• Continue

Question 11

Identify this structure.

Choices:

• Secondary follicle
• Antral follicle
• Secondary (antral) follicle

Answers:

• Secondary follicle
• Antral follicle
• Secondary (antral) follicle

Comments:

• Correct
• That's right! A secondary follicle is distinguished from a multilaminar primary follicle by the presence of an antrum. The antrum forms with accumulation of follicular fluid.
• Continue

Question 12

Identify A.

Choices:

• Cumulus oophorus

Answers:

• Cumulus oophorus

Comments:

• Correct
• That's right! The cumulus oophorus consists of granulosa cells that attach the primary oocyte to the inner wall of the follicle.
• Continue

Question 13

Identify B.

Choices:

• Corona radiata

Answers:

• Corona radiata

Comments:

• Correct
• That's right! The corona radiata consists of a “halo” of granulosa cells that surround the primary oocyte.
• Continue

Question 14

Identify C.

Choices:

• antrum

Answers:

• antrum

Comments:

• Correct
• That's right! The antrum forms as follicular fluid accumulates within the follicle.
• Continue

Question 15

Identify D.

Choices:

• Theca interna

Answers:

• Theca interna

Comments:

• Correct
• That's right! The theca interna becomes a steroid-secreting endocrine tissue, producing androstenedione, which diffuses into the follicle where it is converted to estradiol by the aromatase activity of the granulosa cells.
• Continue

Question 16

Identify E.

Choices:

• Theca externa

Answers:

• Theca externa

Comments:

• Correct
• That's right! The theca externa is fibrous tissue that blends with the surrounding ovarian stroma.
• Continue

Question 17

Identify cell type A. Be specific.

Choices:

• Peg cell
• Peg cells

Answers:

• Peg cell
• Peg cells

Comments:

• Correct
• That's right! Peg cells lack cilia. They secrete glycoproteins that nourish the egg and sperm.
• Continue

Question 18

Identify cell type B. Be specific.

Choices:

• Ciliated cell
• Ciliated cells

Answers:

• Ciliated cell
• Ciliated cells

Comments:

• Correct
• That's right! Ciliated cells beat toward the uterus and therefore promote the movement of the egg away from the ovary along the tubular lumen.
• Continue

Question 19

Identify A. Be specific.

Choices:

• Functional layer
• Stratum functionalis

Answers:

• Functional layer
• Stratum functionalis

Comments:

• Correct
• That's right! FYI, the functional layer is also referred to as stratum functionalis. It is shed, monthly, during menses.
• Continue

Question 20

Identify class of epithelium A.

Choices:

• Simple columnar epithelium
• Simple columnar

Answers:

• Simple columnar epithelium
• Simple columnar

Comments:

• Correct
• That's right! This simple columnar epithelium is characteristic of the endocervical mucosa.
• Continue

Question 21

Identify class of epithelium C.

Choices:

• Stratified squamous nonkeratinized epithelium
• Stratified squamous nonkeratinized

Answers:

• Stratified squamous nonkeratinized epithelium
• Stratified squamous nonkeratinized

Comments:

• Correct
• That's right! This stratified squamous nonkeratinized epithelium is characteristic of the exocervical mucosa.
• Continue

Question 22

Identify B.

Choices:

• Transition zone

Answers:

• Transition zone

Comments:

• Correct
• That's right! At the transition zone the simple columnar epithelium of the endocervical mucosa changes abruptly to the stratified squamous nonkeratinized mucosa of the exocervical mucosa.
• Continue