16. Cryptorchidism is the failure of one or both of the testes to descend from the abdominal cavity into the scrotum during human fetal development. Sterility results if both testes fail to descend. In this case, the likely cause of sterility is that A. lack of oxygen inhibits testosterone function B. C. D. gonadotropic hormones cannot stimulate the testes the testes are not connected to the external environment normal sperm do not readily develop at body temperature

Menopause is the end of the menstrual cycle in the woman, occurring normally at about 50. Which of the following is NOT a result of menopause? Select one: A. High cholesterol level B. Mood swings C. Increase in calcium deposition in the bones D. Loss of hormones

Levonorgestrel, also known as Plan B, is a contraceptive taken by women to prevent pregnancy after unprotected intercourse. It prevents unwanted pregnancy by decreasing the chance of ovulation and thickening the mucus to block the passage of sperm. Levonorgestrel is only effective if taken before day 14 of the menstrual cycle because Select one: a. it inhibits the estrogen surge b. it inhibits the LH surge c. it lowers the progesterone levels d. it lowers the FSH levels

6. During most of the active phase: A. Fetal descent occurs B. Uterine contractility diminishes C. Cervical dilation occurs linearly D. The cervix remains very posterior 7. Which of the following is generally true of multiparas? A. Labor is longer than in nulliparas B. Labor begins with the fetal head at a higher station than in nulliparas C. Prolonged latent phase is diagnosed after 20 h of labor D. Labor begins with a less mature cervix than in nulliparas