Reproductive
20 Questions
| Attempts: 288
Chapter 22: The Reproductive System
Questions and Answers
- 1.
In both male and females, gonadotropin secretion by the anterior pituitary is stimulated by
- A.
Inhibin
- B.
Androgens
- C.
GnRH
- D.
FSH
- E.
GHRH
Correct Answer
C. GnRH -
- 2.
In the first step of spermatogenesis, spematogonia differentiate into cells called
- A.
Spermatids
- B.
Primary spermatocytes
- C.
Secondary spermatocytes
- D.
Spermatozoa
- E.
Spermatophytes
Correct Answer
B. Primary spermatocytes -
- 3.
In Oogenesis, meiosis I occurs
- A.
In early fetal life
- B.
At birth
- C.
Just before ovulation
- D.
After ovulation but before fertilization
- E.
After fertilization
Correct Answer
C. Just before ovulation -
- 4.
During early to mid-follicular phase of the ovarian cycle, granulosa cell functions are stimulated by
- A.
Progesterone
- B.
FSH
- C.
LH
- D.
GnRH
- E.
Estrogens
Correct Answer
B. FSH -
- 5.
In the late luteal phase, estrogen and progesterone levels fall because of
- A.
Rupture of dominant follicle
- B.
Degeneration of the corpus luteum
- C.
An inhibitory effect of LH on secretory activity of corpus luteum
- D.
The inhibitory effect of inhibin on the secretory activity of granulosa cells
- E.
All of the above
Correct Answer
B. Degeneration of the corpus luteum -
- 6.
In the uterine cycle, the proliferate phase is immediately preceded by the
- A.
Menstrual phase
- B.
Secretory phase
- C.
Luteal phase
- D.
Follicular phase
Correct Answer
A. Menstrual phase -
- 7.
In meiosis I, maternal and paternal chromosomes are segregated into separate daughter cells (true/ false)
Correct Answer
False - 8.
FSH and LH are classified as (sex hormones / gonadotropins).
Correct Answer
gonadotropins - 9.
GnRH, which is secreted by the hypothalamus, stimulates the secretion of both FSH and LH from the anterior pituitary (true / false)
Correct Answer
true - 10.
Spermatogenesis is stimulated by testosterone and (FSH / LH), which targets Sertoli cells.
Correct Answer
FSH - 11.
The head of a sperm contains chromosomes and a(n) ________, a vesicle containing enzymes needed for fertilization
Correct Answer
acrosome - 12.
Fertilization usually occurs in the (uterus / uterine tube).
Correct Answer
Uterine tube - 13.
The second half of the ovarian cycle is called the (luteal / follicular) phase
Correct Answer
luteal - 14.
The inner layer of the uterine wall is called the (endometrium / myometrium)
Correct Answer
endometrium - 15.
During the (proliferative / secretory) phase of the uterine cycle, the lining of the uterus thickens under influence of rising estrogen levels.
Correct Answer
proliferative - 16.
Ovulation is triggered by (FSH / LH).
Correct Answer
LH - 17.
The corpus luteum secretes estrogens and (LH / progesterone)
Correct Answer
progesterone - 18.
Degeneration of the corpus luteum causes hormonal changes that trigger (ovulation / menstruation).
Correct Answer
menstruation - 19.
Secretory phase uterine conditions are promoted by (estrogen / progesterone) which inhibits gonadotropin secretion during the last half of the ovarian cycle.
Correct Answer
progesterone - 20.
During the last 6 months of pregnancy, estrogens and progesterone are secreted by the (ovaries / placenta)
Correct Answer
placenta
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Feb 15, 2013Quiz Edited by
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Apr 30, 2012Quiz Created by
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