Question 1

Each oocyte remains under meiotic arrest until just before

Accepted Answer

A)  the third month of embryonic life.
B)  puberty.
C)  fertilization.
D)  birth.
E)  ovulation.

Question 2

The release of the oocyte by typically occurs every 28 days.

Accepted Answer

A)  ovulation
B)  parturition
C)  transcytosis
D)  sublimation
E)  endocytosis

Question 3

The secretory activity of the anterior pituitary begins to change during late follicular phase such that

Accepted Answer

A)  inhibin stimulates the release of luteinizing hormone (LH) .
B)  estrogen reverses its negative feedback control on LH release, changing over to a positive feedback loop which increases the release of luteinizing hormone (LH) .
C)  inhibin stimulates the release of follicle- stimulating hormone (FSH) .
D)  gonadotropin increases the release of luteinizing hormone (LH) .
E)  estrogen decreases the release of follicle- stimulating hormone (FSH) .

Question 4

During sex differentiation, the presence of what stimulates the development of the Wolffian duct?

Accepted Answer

A)  testosterone
B)  estrogen
C)  MIS
D)  inhibin
E)  progesterone

Question 5

The secretion of estrogen and progesterone by the corpus luteum during pregnancy is maintained by until the corpus luteum degenerates and the takes over secretion of these hormones.

Accepted Answer

A)  luteinizing hormone (LH) : endometrium
B)  luteinizing hormone (LH) : placenta
C)  human chorionic gonadotropin (hCG) : fetus
D)  human chorionic gonadotropin (hCG) : endometrium
E)  human chorionic gonadotropin (hCG) : placenta

Question 6

The corpus luteum degenerates once fertilization occurs.

Accepted Answer

A) True 
 B)False

Question 7

Where does fertilization usually occur?

Accepted Answer

A)  cervical canal
B)  vagina
C)  uterus
D)  uterine (fallopian) tube
E)  ovary

Question 8

The hormonal trigger for menstruation involves a

Accepted Answer

A)  drop in plasma luteinizing hormone (LH) .
B)  reduction of plasma follicle- stimulating hormone (FSH) .
C)  loss of estrogen secretion from the adrenal cortex.
D)  reduction of inhibin secretion.
E)  loss of progesterone secretion from the corpus luteum.

Question 9

Describe, in general, the hypothalamic- pituitary axis regulation of reproductive function in males and females.

Accepted Answer

The hypothalamic- pituitary axis plays a...

Question 10

Which of the following conditions is NOT induced by the reduction in estrogen release that occurs during menopause?

Accepted Answer

A)  increased risk for osteoporosis
B)  absence of sexual arousal
C)  loss of ovulation
D)  decreased breast size
E)  increased risk of heart disease

Question 11

When do sperm acquire motility?

Accepted Answer

A)  after they enter the efferent ductule
B)  after they enter the vagina
C)  after they have been exposed to bulbourethral fluid
D)  after they undergo further maturation in the epididymis
E)  after they have been exposed to fluid in the female reproductive tract

Question 12

When does the zona pellucida develop?

Accepted Answer

A)  when follicles are in the preantral stage
B)  when follicles are in the early antral stage
C)  after fertilization
D)  when follicles are in the late antral stage
E)  when follicles are in the primordial phase

Question 13

During the menstrual phase, all of the endometrium is shed in the menstrual flow.

Accepted Answer

A) True 
 B)False

Question 14

What structure develops into the fetus?

Accepted Answer

A)  inner cell mass
B)  morula
C)  trophoblast
D)  blastocoele

Question 15

A follicle in its earliest stage of development is called a and contains a(n) .

Accepted Answer

A)  primary follicle : primary oocyte
B)  Graafian follicle : oogonia
C)  Graafian follicle : primary oocyte
D)  primordial follicle : oogonia
E)  primordial follicle : primary oocyte

Question 16

The placenta forms from

Accepted Answer

A)  the trophoblast only.
B)  the blastocoele only.
C)  endometrial tissue only.
D)  chorionic villi only.
E)  both the chorionic villi and endometrial tissue of the mother

Question 17

Which of the following best describes the events that take place when the first sperm binds to the oocyte?

Accepted Answer

A)  The head of the sperm is transported into the cytoplasm of the oocyte, where the nucleus of the sperm releases its DNA to combine with the DNA of the oocyte and transcription occurs. The oocyte then undergoes the second meiotic division.
B)  The entire sperm is transported into the cytoplasm of the oocyte, where the nucleus of the sperm releases its DNA to combine with the DNA of the oocyte and transcription occurs. The oocyte then undergoes the second meiotic division.
C)  The head of the sperm is transported into the cytoplasm of the oocyte, where the nucleus of the sperm releases its DNA to combine with the DNA of the oocyte and transcription occurs. The oocyte then undergoes the first meiotic division.
D)  The head of the sperm is transported into the cytoplasm of the oocyte which stimulates the completion of its arrested meiosis II and the second polar body is produced. The two parental (haploid) pronuclei then replicate their DNA while migrating towards each other to create their first mitotic division.
E)  The entire sperm is transported into the cytoplasm of the oocyte, where the nucleus of the sperm releases its DNA to combine with the DNA of the oocyte and replication occurs. The oocyte then undergoes the first meiotic division.

Question 18

The reproductive cycle requires both mitotic and meiotic processes. Describe the basic properties of gametogenesis in males and females.

Accepted Answer

Gametogenesis is the development of hapl...

Question 19

Which of the following provides negative feedback to FSH secretion, but not LH, in both males and females?

Accepted Answer

A)  inhibin
B)  LH
C)  estrogens
D)  FSH
E)  progesterone

Question 20

What is the function of androgen- binding protein?

Accepted Answer

A)  maintain steady levels of androgens in the lumen of seminiferous tubules
B)  provide positive feedback for the release of luteinizing hormone
C)  transport androgens in blood
D)  transport androgens across the blood- testis barrier
E)  provide negative feedback for the release of follicle stimulating hormone

Exam 22: The Reproductive System

Which of the following provides negative feedback to FSH secretion, but not LH, in both males and females?

Correct AnswerverifiedShow Answer

What structure develops into the fetus?

Correct AnswerverifiedShow Answer

A follicle in its earliest stage of development is called a and contains a(n) .

Correct AnswerverifiedShow Answer

During the menstrual phase, all of the endometrium is shed in the menstrual flow.

Correct AnswerverifiedShow Answer

The hormonal trigger for menstruation involves a

Correct AnswerverifiedShow Answer

What is the function of androgen- binding protein?

Correct AnswerverifiedShow Answer

Which of the following best describes the events that take place when the first sperm binds to the oocyte?

Correct AnswerverifiedShow Answer

During sex differentiation, the presence of what stimulates the development of the Wolffian duct?

Correct AnswerverifiedShow Answer

The corpus luteum degenerates once fertilization occurs.

Correct AnswerverifiedShow Answer

The reproductive cycle requires both mitotic and meiotic processes. Describe the basic properties of gametogenesis in males and females.

Correct AnswerverifiedGametogenesis is the development of hapl...View AnswerShow Answer

The secretion of estrogen and progesterone by the corpus luteum during pregnancy is maintained by until the corpus luteum degenerates and the takes over secretion of these hormones.

Correct AnswerverifiedShow Answer

The placenta forms from

Correct AnswerverifiedShow Answer

When do sperm acquire motility?

Correct AnswerverifiedShow Answer

The release of the oocyte by typically occurs every 28 days.

Correct AnswerverifiedShow Answer

Where does fertilization usually occur?

Correct AnswerverifiedShow Answer

Which of the following conditions is NOT induced by the reduction in estrogen release that occurs during menopause?

Correct AnswerverifiedShow Answer

Describe, in general, the hypothalamic- pituitary axis regulation of reproductive function in males and females.

Correct AnswerverifiedThe hypothalamic- pituitary axis plays a...View AnswerShow Answer

Each oocyte remains under meiotic arrest until just before

Correct AnswerverifiedShow Answer

When does the zona pellucida develop?

Correct AnswerverifiedShow Answer

The secretory activity of the anterior pituitary begins to change during late follicular phase such that

Correct AnswerverifiedShow Answer

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Gametogenesis is the development of hapl...
View Answer

Correct Answer
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The hypothalamic- pituitary axis plays a...
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