121.  During the female sex act,  
A.  the clitoris becomes engorged with blood.
B.  vaginal mucoid secretions are reduced.
C.  vaginal, uterine, and perineal muscles relax.
D.  an orgasm always occurs to insure fertilization.
E.  an orgasm always occurs.

122.  Sexual drive in females  
A.  is dependent on hormones.
B.  can be affected by psychological factors.
C.  is influenced by androgens that affect the hypothalamus.
D.  is dependent on hormones, can be affected by psychological factors, and is influenced by androgens that affect the hypothalamus.
E.  None of these choices is correct.

123. Assume a couple has just completed intercourse and sperm have been deposited in the woman’s reproductive tract. Trace the pathway of the sperm through the female reproductive tract to the point where fertilization will most likely occur.
(1) cervix
(2) fallopian tubes
(3) cavity of uterus
(4) vagina 
A. 1, 2, 3, 4
B. 4, 1, 3, 2
C. 4, 3, 1, 2
D. 4, 3, 2, 1
E. 1, 3, 2, 4

124.  The ovum is viable for _____ hours following ovulation.  
A.  8
B.  12
C.  24
D.  36
E.  48

125.  Spermatozoa may remain viable in the female reproductive tract for as long as  
A.  24 hours.
B.  48 hours.
C.  72 hours.
D.  96 hours.
E.  144 hours.

126.  Fertilization can only occur  
A.  if orgasms occur in both the male and female.
B.  when a sperm cell penetrates a secondary oocyte.
C.  when there is no menstrual flow.
D.  after oxytocin is released from the hypothalamus.
E.  on day 14 of the cycle.

127.  Fertilization usually occurs in the _____ while fetal development occurs in the _____.  
A.  uterus, vagina
B.  uterine tube, uterus
C.  uterine tube, fimbriae
D.  vagina, uterus
E.  ovary, uterus

128.  The corpus luteum  
A.  degenerates into the corpus albicans if pregnancy does not occur.
B.  is absolutely necessary during the first three months of pregnancy.
C.  produces mostly progesterone, but also some estrogen.
D.  degenerates into the corpus albicans if pregnancy does not occur and produces mostly progesterone, but also some estrogen.
E.  degenerates into the corpus alibicans if pregnancy does not occur, is absolutely necessary during the first three months of pregnancy, and produces mostly progesterone, but also some estrogen.

129.  The placenta produces both  
A.  estrogen and progesterone.
B.  progesterone and prolactin.
C.  prolactin and FSH.
D.  androgens and estrogens.
E.  oxytocin and prolactin.

130.  Which of the following hormones is detected by over-the-counter pregnancy kits?  
A.  progesterone
B.  estrogen
C.  prolactin
D.  human chorionic gonadotropin
E.  oxytocin