c. prostate gland. h. testes. rl crrnhim

Transcription

1 During fetal life, the testes are located a. in the scrotum. c. within the abdominal cavity. b. posterior to the parietal peritoneum. d. in the pelvis. The descent of the testes into the scrotum is stimulated by a. increasing pressure within the abdominal c. shortening of the gubernaculum. cavity. d. shifts in core temperature of the fetus. b. the male hormone testosterone. The testes are suspended in the scrotum by the The structure that guides the descent of the testes into the scrotum is the In order to descend into the scrotum, the testes must travel through the a. peritoneum. c. abdominal wall. b. vas deferens. d. inguinal canal. When a testes fails to descend into the scrotum, the condition is known as The fetal structure that can lead to the development of an indirect hernia is the a. scrota1 sac. c. tunica abluginea. b. vaginal process. d. omenturn. The co~nplex network of channels derived from the seminiferous tubules is the a. rete testis. c. mediastinum testis. b. tunica albuginea. d. epididymis. Prior to adolescence, the undifferentiated spermatogenic cells in the testes are called The process by which the number of chromosomes in a sex cell is reduced from 46 to 23 and which assures genetic variety is a. mitosis. c. mutation. b. cross over. d. meiosis. Each primary spermatocyte will eventually produce how many sperm cells? The nucleus in the head of the sperm contains chromosomes. Spermatogenesis occurs (continuously/episodically) in men. The structure in the head of a sperm cell that contains enzymes which facilitate penetration of an ovum is the The function of the epididymis is to a. produce sex hormones. c. store sperm as they mature. b. provide the sperm with mobile tails. d. supply some of the force needed for ejaculation. The vas deferens passes through the just before emptying into the urethra. Which of the following substances are added to sperm cells by the seminal vesicle? a. acid c. glucose b. fructose d. prostaglandins The secretion of the prostate gland is added to seminal fluid during The function of the bulbourethral glands is to a. neutralize the acid secretions of the vagina. c. lubricate the penis. b. nourish sperm cells. d. increase the volume of semen. The external organs of the male reproductive system include the a. penis. c. prostate gland. h. testes. rl crrnhim

2 During fetal life, the testes are located a. in the scrotum. c. within the abdominal cavity. b. posterior to the parietal peritoneum. d. in the pelvis. The descent of the testes into the scrotum is stimulated by a. increasing pressure within the abdominal c. shortening of the gubernaculum. cavity. d. shifts in core temperature of the fetus. b. the male hormone testosterone. The testes are suspended in the scrotum by the The structure that guides the descent of the testes into the scrotum is the In order to descend into the scrotum, the testes must travel through the a. peritoneum. c. abdominal wall. b. vas deferens. d. inguinal canal. When a testes fails to descend into the scrotum, the condition is known as The fetal structure that can lead to the development of an indirect hernia is the a. scrota1 sac. c. tunica abluginea. b. vaginal process. d. omenturn. The co~nplex network of channels derived from the seminiferous tubules is the a. rete testis. c. mediastinum testis. b. tunica albuginea. d. epididymis. Prior to adolescence, the undifferentiated spermatogenic cells in the testes are called The process by which the number of chromosomes in a sex cell is reduced from 46 to 23 and which assures genetic variety is a. mitosis. c. mutation. b. cross over. d. meiosis. Each primary spermatocyte will eventually produce how many sperm cells? The nucleus in the head of the sperm contains chromosomes. Spermatogenesis occurs (continuously/episodically) in men. The structure in the head of a sperm cell that contains enzymes which facilitate penetration of an ovum is the The function of the epididymis is to a. produce sex hormones. c. store sperm as they mature. b. provide the sperm with mobile tails. d. supply some of the force needed for ejaculation. The vas deferens passes through the just before emptying into the urethra. Which of the following substances are added to sperm cells by the seminal vesicle? a. acid c. glucose b. fructose d. prostaglandins The secretion of the prostate gland is added to seminal fluid during The function of the bulbourethral glands is to a. neutralize the acid secretions of the vagina. c. lubricate the penis. b. nourish sperm cells. d. increase the volume of semen. The external organs of the male reproductive system include the a. penis. c. prostate gland. h. testes. rl crrnhim

3 The smooth muscle in the scrotum is the muscle. Erection of the penis depends on a. contraction of the perineal muscles. c. enlargement of the glans penis. b. filling of the corpus spongiosum with arterial blood. d. peristaltic contractions of the vas deferens. Hormones that control male reproductive functions are secreted by the, the, and the The pituitary hormone that stimulates the testes to produce testosterone is a. gonadotropin-releasing hormone. c. LH (ICSH). b. FSH. d. ACTH. In the male, the growth of body hair, especially in the axilla, face, and pubis, and increased muscle and bone development are examples of characteristics. Oversecretion of FSH is prevented by secretion of the hormone The primary organs of the female reproductive system are the In the ovary, the primary germinal epithelium is located a. in the medulla. c. in the cortex. b. between the medulla and cortex. d. on the free surface of the ovary. The primary oocyte produces mature egg cell(s). At puberty, the primary oocyte matures within the The formation of polar bodies during oogenesis is a rare example of wasted energy and cellular material. a. True b. False The egg cell is nourished by the a. theca interna. c. zona pellucida. b. theca externa. d. corona radiata. The egg is released by the ovary in a process called Which of the following statements islare true about the fallopian (uterine) tubes? a. The end of the uterine tube near the ovary c. The inner layer of the ovarian tube is has many fingerlike projections called cuboidal epithelium. fimbriae. d. There are cilia in the lining of the fallopian b. The fimbriae are attached to the ovaries. tube that help move the egg toward the uterus. The inner layer of the uterus is the The upper portion of the vagina that surrounds the cervix is the a. fornix. c. vestibule. b. rectouterine pouch. d. hymen. Which of the following statements about the vagina islare true? a. The mucosal layer contains many mucous glands. b. The levator ani is primarily responsible for closing the vaginal orifice. The organ of the female reproductive system that is analogous to the penis is the a. vagina. c. clitoris. b. mons pubis. d. labia majora. c. The mucosa is drawn into many longitudinal and transverse ridges. d. The hymen is a membrane that covers the ~nouth of the cervix.

4 Which of the following tissues become engorged and erect in response to sexual stimulation? a. clitoris c. outer third of the vagina. b. labia minora d. upper third of the vagina. The hormonal mechanisms that control female reproductive functions are (morelless) complex than those of the male. The primary female sex hormones are Which of the following secondary sex characteristics in the female seem to be related to androgen concentration? a. breast development d. deposition of adipose tissue over hips, b. growth of axillary and pubic hair thighs, buttocks, and breasts c. female skeletal configuration and Which of the following is not a source of female sex hormones? a. pituitary gland c. ovary b. placenta d. adrenal gland During the menstrual cycle, the event that seems to provoke ovulation is a. increasing levels of progesterone. c. decreasing levels of estrogen. b. a sudden increase in concentration of LH. d. a cessation of secretion of FSH. After the release of an egg, the follicle forms a As the above structure develops, the level of which of the following hormones increases? a. estrogen c. FSH b. progesterone d. LH As the honnone levels change in the part of the cycle before and immediately after ovulation, which of the following changes are seen in the uterus? a. growth of the endometrial tissue and blood c. thickening of the endometrium vessel d. decrease in uterine gland activity b. increase in adipose cells of the perimetrium The concentration of which of the following hormones decreases following ovulation? a. estrogen c. FSH b. progesterone d. LH The beginning of the menstrual cycle at puberty is called middle age is called Breasts overlie the The most common breast disease in women is muscle of the chest wall. a. fibrocystic disease. c. mastitis. ; the cessation of the menstrual cycle in b. breast cancer. d. silicosis secondary to breast implants. Methods of contraception that utilize mechanical barriers are a. coitus interruptus. c. the diaphragm. b. the condom. d. the IUD. The method of contraception that is thought to interfere with ovulation is a. the rhythm method. c. chemical foams. b. the oral contraceptive (the pill). d. the IUD. The commonly used surgical technique to sterilize the male is the

5 3 1. rate, depth 32. c 33. ammonium 34. a 35. b 22 Mastery Test Answers 1. testes 2. b 3. b 4. spermatic cord 5. gubemacalum 6. d 7. e~yptorchidism 8. b 9. a 10. spermatogonia 11. d 12. four continuously 15. acrosome 16. c 17. prostate gland 18. b, d 19. emission 20. c 21. a, d 22. dartos 23. b 24. testes, hypothalamus, anterior pituitary gland 25. c 26. secondary sexual 27. inhibitin 28. ovaries 29. d 30. one 3 1. primary follicle 32. b 33. d 34. ovulation 35. a, d 36. endometrium 37. a 38. b, c 39. c 40. a, c 41. more 42. estrogen, progesterone 43. b, c 44. a 45. b 46. corpus luteum 47. b 48. a 49. c, d 50. menarch, menopause 51. pectoralis major 53. b, c 54. b 55. vasectomy 56, c 57. c 23 Mastery Test Answers 1, growth 2. development 3. prenatal period 4. post natal period 5. b 6. d 7. c 8. b, d 9. forming a zygote 10. c 11. d 12. hcg 13. trophoblast 14. b 15. placenta 16. b 17. primary germ 18. b 19. a, b, c 20. a 21. placenta 22. amnion 23. c 24. c, d teratogens 27. neural tube 28. b 29. c 30. b, d 31. vein 32. a 33. foramen ovale, ductus arteriosus 34. surfactant 35. progesterone, oxytocin 36. c 37. prolactin 38. a, b 39. c 40. less 41. d 42. infancy 43. adolescence 44. senescence 45. c 46. b 47. b 48. a, b, d 49. apoptosis