Question 1

Which of the following events in the menstrual cycle occur at the same time?

Accepted Answer

A) maximal LH secretion and menstruation (menstrual flow) 
B) early follicular development in the ovaries and maximum thickening of the uterus 
C) ovulation and menstruation (menstrual flow) 
D) uterine wall begins to thicken and increased estrogen production by the follicles 
E) proliferation and secretion

Question 2

In a mature follicle,the oocyte lies in a mass of follicular cells called the

Accepted Answer

A) theca interna. 
B) zona pellucida. 
C) granulosa. 
D) cumulus mass. 
E) theca externa.

Question 3

The secondary oocyte completes the second meiotic division when

Accepted Answer

A) the mature follicle ruptures. 
B) it is penetrated by a sperm cell. 
C) it is implanted in the uterus. 
D) it receives both estrogen and progesterone. 
E) ovulation occurs.

Question 4

The opening in the abdominal wall through which the testes descend is the

Accepted Answer

A) spermatic cord. 
B) gubernaculum. 
C) inguinal canal. 
D) process vaginalis. 
E) perineal opening.

Question 5

Which of the following events is caused by LH?

Accepted Answer

A) stimulation of theca interna cells to produce androgens 
B) stimulation of granulosa cells to convert androgens to estradiol 
C) increase LH receptors in granulosa cells 
D) menses 
E) oxytocin is released

Question 6

Normally,menstruation occurs when

Accepted Answer

A) blood levels of estrogen increase and progesterone levels decrease rapidly. 
B) blood levels of estrogen and progesterone increase rapidly. 
C) blood levels of FSH decrease rapidly. 
D) the corpus luteum secretes estrogen. 
E) blood levels of both female hormones decrease rapidly.

Question 7

Trace the pathway of an egg as it passes through the uterine tube. (1)ampulla
(2)fimbriae
(3)infundibulum
(4)isthmus

Accepted Answer

A) 1,2,3,4 
B) 2,4,1,3 
C) 3,4,1,2 
D) 2,3,1,4 
E) 3,1,2,4

Question 8

The contraceptive method that not only prevents fertilization but also provides protection against sexually transmitted diseases is

Accepted Answer

A) the condom. 
B) oral contraceptives. 
C) spermicidal agents. 
D) coitus interruptus. 
E) the diaphragm.

Question 9

Which of the listed events occurs last?

Accepted Answer

A) GnRH secretion is stimulated. 
B) FSH/LH positive-feedback loops produce a series of FSH/LH surges. 
C) Ovulation occurs. 
D) Estrogen produced by theca interna cells increases. 
E) FSH and LH levels increase.

Question 10

One hormone responsible for initiating the development of follicles is

Accepted Answer

A) HCG. 
B) progesterone. 
C) FSH. 
D) estrogen. 
E) LH.

Question 11

Male infants can be born with an undescended testis.This means that the testis

Accepted Answer

A) lacks hormonal cells. 
B) covers the top of the scrotum. 
C) has lost its blood supply. 
D) remains in the abdominopelvic cavity. 
E) has not properly formed.

Question 12

What are the female gametes?

Accepted Answer

A) oocytes 
B) ovaries 
C) sperm 
D) uterus

Question 13

The interstitial cells or Leydig cells

Accepted Answer

A) produce sperm. 
B) form the wall of the rete testis. 
C) cover the testis with a white tunic. 
D) secrete seminal fluid. 
E) secrete testosterone.

Question 14

"Zygote" is the term used to describe the

Accepted Answer

A) Graafian oocyte. 
B) primary oocyte. 
C) secondary oocyte. 
D) fertilized oocyte. 
E) sperm just before fertilization.

Question 15

What is the active hormone in target tissues of testosterone such as the penis?

Accepted Answer

A) testosterone 
B) FSH 
C) ICSH 
D) dihydrotestosterone

Question 16

The placenta produces both

Accepted Answer

A) estrogen and progesterone. 
B) progesterone and prolactin. 
C) prolactin and FSH. 
D) androgens and estrogens. 
E) oxytocin and prolactin.

Question 17

FSH

Accepted Answer

A) stimulates theca interna cells to produce androgens. 
B) primarily effects granulosa cells. 
C) increases progesterone production. 
D) inhibits LH. 
E) stimulates the uterus.

Question 18

Luteinizing hormone (LH)binds to interstitial (Leydig)cells and

Accepted Answer

A) inhibits sustentacular cells. 
B) promotes sperm cell production by the interstitial cells. 
C) decreases testosterone production by the interstitial cells. 
D) stimulates GnRH levels to increase in the testes. 
E) increases testosterone production by the interstitial cells.

Question 19

Puberty in a female is characterized by

Accepted Answer

A) adipose tissue deposition in the breasts and around the hips. 
B) increased muscle mass,especially in the hips. 
C) growth of facial hair. 
D) closure of the uterine tubes. 
E) growth of chest hair.

Question 20

Follicles in the ovary that are never ovulated

Accepted Answer

A) undergo atresia. 
B) become the corpus albicans. 
C) form secondary follicles. 
D) undergo and complete meiosis in the ovary. 
E) proliferate.

Exam 28: Reproductive System