REPRODUCTIVE SYSTEM

image credit: livescience.com

By Oba Mike

Instruction: Practice without the answers first.

1. In sexual reproduction, males and females produce germ cells called:

a. Zygote

b. Gamete

c. Embryo

d. Foetus

2. The scrotum is separated externally into two lateral portions by a median ridge called:

a. Tunica albuginea

b. Tunica vaginalis

c. Raphe

d. Scrotal septum

3. Which of these statements is true about sperm production?

a. Sperm production requires a temperature that is 2 – 3 °C above body temperature

b. Sperm production requires a temperature that is 2 – 3 °C below body temperature

c. Sperm production is requires normal body temperature.

d. Sperm production requires an extremely low temperature

4. Contraction of the cremaster muscle causes which of these actions?

a. Pulls the scrotum towards the body

b. Pulls the scrotum away from the body

c. Wrinkles the scrotum

d. Smoothens the scrotum

5. The connective tissue surrounding each testis is called:

a. Tunica albuginea

b. Tunica media

c. Tunica vaginalis

d. Tunica intima

6. The following are cells in the testis except:

a. Spermatozoon

b. Sustentacular

c. Leydig

d. Chromaffin

7. Sex drive in men is enhanced by:

a. Spermatozoa

b. Testosterone

c. Leydig cells

d. Sertoli cells

8. The cells located within the interstitial spaces of the testis are:

a. Sustentacular cells

b. Leydig cells

c. Sperm cells

d. Sertoli cells

9. What is the function of Leydig cells?

a. Production of testosterone

b. Production of spermatozoa

c. Support to sperm cells

d. Maturation of sperm cells

10. The major function of the epididymis is:

a. Sperm production

b. Sperm maturation

c. Sperm motility

d. Sperm nutrition

11. The average length of the ductus deferens is:

a. 100 cm

b. 90 cm

c. 70 cm

d. 45 cm

12. The surgical removal of the ductus deferens as a form of male contraception is termed:

a. Vasectomy

b. Circumcision

c. Castration

d. Mutilation

13. Which of these structures is urogenital in males?

a. Vas deferens

b. Epididymis

c. Urethra

d. Prostate

14. The shortest part of the male urethra is:

a. Prostatic urethra

b. Membranous urethra

c. Penile urethra

d. Seminal urethra

15. Which of these structures is absent in a circumcised male?

a. Vas deferens

b. Glans penis

c. Prepuce

d. Corpus spongiosum

16. What happens during erection?

a. The penis is inflamed

b. Blood fills the sinuses in the erectile tissues

c. The penis is filled with sperm ready to ejaculate

d. The penis becomes enlarged and long in attempt to locate the vaginal orifice.

17. The major difference between impotence and infertility in men is:

a. Impotence is more concerned with inability to have sex while infertility is inability to produce viable sperm cells.

b. Impotence affect only the elderly men while infertility occurs in all ages.

c. Infertility is general while impotence is part of infertility

d. Impotence is the peak of infertility in men

 

18. Common causes of premature ejaculation include the following except:

a. Penis size

b. Anxiety

c. Oversensitive glans

d. Poor nutrition

19.  Which of the following is not part of the male reproductive system?

a. Bladder

b. Penis

c. Scrotum

d. Prostate

20. What keeps the testes outside the body and below body temperature?

a. Urethra

b. Penis

c. Scrotum

d. Prostate gland

21. An accessory male reproductive organ is:

a. Testis

b. Epididymis

c. Seminal vesicle

d. Ejaculatory duct

22. Male external genitals include:

a. Scrotum, Testis and urethral orifice

b. Testis, Penis and Urethral orifice

c. Penis scrotum and Urethral orifice

d. Prostate, seminal vesicle and bulbourethral gland

23. The Dartos muscle is found in:

a. Scrotum

b. Spermatic cord

c. Vas deferens

d. Epididymis

24. The average mass of each testis is:

a. 5 – 10 g

b. 10 - 15 g

c. 20 – 25 g

d. 3O – 50 g

25. Spermatogenesis occurs in:

a. Seminiferous tubules

b. Rete testis

c. Interstitial spaces

d. Efferent ductules

26. Formation of testosterone occurs in:

a. Seminiferous tubules

b. Straight tubules

c. Interstitial spaces

d. Efferent ductules

27. Leydig cells that form testosterone are found in:

a. Seminiferous tubules

b. Interstitial spaces

c. Epididymis

d. Vas deferens

28. If uncoiled, the epididymis will measure a total length of about:

a. 4 cm

b. 6 cm

c. 2 m

d. 6 m

29. The largest part of the epididymis is the:

a. Head

b. Body

c. Tail

d. Limb

30. The head of the epididymis connects with:

a. Testis

b. Vas deferens

c. Ejaculatory duct

d. Prostate

31. The tail of the epididymis connects with:

a. Testis

b. Vas deferens

c. Ejaculatory duct

d. Prostate

32. The major function of the epididymis is:

a. Sperm formation

b. Sperm maturation

c. Sperm motility

d. Sperm capacitation

33. The field of medicine that focus on the diagnosis and treatment of diseases of the male reproductive system is:

a. Gynaecology

b. Gerontology

c. Obstetrics

d. Urology

34. What happens to unused sperm cells in the epididymis?

a. They are destroyed and discarded.

b. They die and are excreted through urine.

c. They are phagocytized.

d. They are reabsorbed

35. The average length of the vas deferens is:

a. 20 cm

b. 25 cm

c. 40 cm

d. 45 cm

36. The surgical removal of the ductus deferens is termed:

a. Circumcision

b. Vasectomy

c. Castration

d. Arbitration

37. The ejaculatory duct is formed by:

a. Union of the duct of seminal vesicle and epididymis

b. Union of the duct of seminal vesicle and vas deferens

c. Union of the seminal vesicle and the prostate

d. Union of the seminal vesicle and Cowper’s gland

38. Semen generally refers to:

a. Sperm cells and secretions from the accessory glands

b. Secretions from the seminal vesicles

c. Secretions from all the accessory glands

d. The initial fluid expelled before the actual ejaculation

39. Sperm receive nutrient through secretions from:

a. Seminal vesicles

b. Prostate gland

c. Cowper’s gland

d. Bulbourethral gland

40. Sperm cells are protected from the acidity of the urethra and the female genital tract by alkaline secretions from:

a. Seminal vesicles

b. Prostate

c. Cowper’s gland

d. Bulbourethral gland

41. The lining of the urethra and penis is lubricated by mucus fluid secreted by:

a. Seminal Vesicles

b. Prostate

c. Bulbourethral glands

d. Corpus spongiosum

42. The three parts of the penis are:

a. Body, Shaft and root

b. Shaft body and glans

c. Body, glans and root

d. Shaft, glans and tail

43. The corpus cavenosus and corpus spongiosum are:

a. Erectile tissues

b. Epithelial tissues

c. Neural tissues

d. Muscle tissues

44. The foreskin covering the glans penis in an uncircumcised male is also called:

a. Prepuce

b. Corona

c. Corpora

d. Root

45. The blood vessels that supply and drain the testes are contained within the _________

a. Scrotum

b. Spermatic cord

c. Ductus deferens

d. Ejaculatory duct

46. Testosterone produced by the testis is carried into general circulation via _______

a. Testicular artery

b. Testicular vein

c. Spermatic cord

d. Ejaculatory duct

47. What is varicocele?

a. Swelling of veins in the scrotum

b. Inflammation of the vas deferens

c. Enlargement of the seminal vesicle

d. Another name for vasectomy

48. Which is not true about erection and ejaculation?

a. Erection precedes ejaculation

b. Erection involves enlargement of the penis while ejaculation is release of semen

c. Ejaculation usually terminates erection

d. Ejaculation always follows erection

49. Each ejaculate usually contains an average of:

a. 1 – 5 sperm cells

b. 100 – 500 sperm cells

c. 10000 – 100000 sperm cells

d. 10000000 – 50000000 sperm cells

50. The sertoli cells present in the seminiferous tubules are:

a. Reproductive cells

b. Protective cells

c. Germinal cells

d. Endocrine cells

51. Another name for Bulbourethral gland is:

a. Meibomian gland

b. Prostate gland

c. Perineal gland

d. Cowper’s gland

 

52. Cryptorchidism is the condition where:

a. Testes do not descent into the scrotum

b. There are two testes in each scrotum

c. Testes degenerate in the scrotum

d. Testes enlarge in the scrotum

53. Seminiferous tubules develop central lumen after:

a. Old age

b. Birth

c. Puberty

d. Prepuberal time

54. Which of these will most likely occur in a boy during puberty?

a. Change in eye colour

b. Broadened shoulders

c. Production of eggs

d. Stops playing with toys

55. A structure that surrounds the testis is:

a. Urethra

b. Penis

c. Sperm duct

d. Scrotum

56. The following are parts of the male reproductive system except:

a. Penis

b. Bladder

c. Prostate gland

d. Scrotum

57. The testes are located outside the body because:

a. Sperm have a shorter distance to travel during intercourse

b. There is no room to fit the testes inside the body.

c. Production of sperm best take place at a temperature below body temperature

d. More sperm can be formed outside.

58. What is the name given to the male gamete?

a. Sperm

b. Penis

c. Zygote

d. Embryo

59. The release of semen during intercourse is called:

a. Pollination

b. Fertilization

c. Ejaculation

d. Implantation

60. Puberty in boys is usually between:

a. 16 to 18 years of age

b. 10 to 11 years of age

c. 12 to 14 years of age

d. 20 to 30 years of age

61. Which is least likely to occur in a boy at puberty?

a. Growth of pubic hair

b. Production of sperm cells

c. Deepening of voice

d. Emergence of grey hair

62. During spermatogenesis, the first meiotic division gives rise to:

a. Primary spermatocytes

b. Secondary spermatocytes

c. Spermatids

d. Spermatozoa

63. The second meiotic division is also called:

a. Equation reaction

b. Reduction reaction

c. Multiplication reaction

d. Oxidation reaction

64. The second meiotic division produces:

a. Primary spermatocytes

b. Secondary spermatocytes

c. Spermatids

d. Spermatozoa

65. The first meiotic division is otherwise called:

a. Equation reaction

b. Reduction reaction

c. Multiplication reaction

d. Oxidation reaction

66. The products of the first meiotic division are:

a. Haploid

b. Diploid

c. Four

d. Five

67. The metamorphosis of spermatids into spermatozoa is termed:

a. Spermatogenesis

b. Spermatocytosis

c. Spermatokinesis

d. Spermiogenesis

68. Spermatogeneis gives rise to _______ sperm cells

a. 1

b. 2

c. 3

d. 4

69. Sperm maturation occurs in:

a. Testis

b. Epididymis

c. Vas deferens

d. Ejaculatory duct

70. Sperm capacitation occurs in:

a. Testis

b. Epididymis

c. Vas deferens

d. Female genital tract.

Use the diagram below to answer questions 71 – 80

image credit: seer.cancer.gov

71. The diagram represents:

a. Male reproductive system

b. Testis

c. Epididymis

d. Testis and epididymis

72. The part marked ‘2’ is:

a. Tunica albuginea

b. Scrotum

c. Spermatic cord

d. Skin

 

73. Sperm production occurs in:

a. 1

b. 3

c. 5

d. 7

74. Seminiferous tubules are found in:

a. 4

b. 7

c. 9

d. 10

75. What forms ‘3’?

a. Tunica albugenia

b. Tunica vaginalis

c. Seminiferous tubules

d. Straight tubules

76. The efferent ductules are labelled:

a. 8

b. 9

c. 10

d. 11

77. The mediastinum testis is labelled:

a. 8

b. 9

c. 10

d. 11

78. The unlabeled curved cylindrical part is:

a. Spermatic cord

b. Epididymis

c. Efferent ductules

d. Rete testis

79. The leydig cells are situated at:

a. 7

b. 8

c. 9

d. 10

80. This structure is usually found in:

a. Scrotum

b. Spermatic cord

c. Inguinal canal

d. Penis

Use the diagram below to answer questions 81 – 90

 

 

 image credit: quizlet.com

81. 12 is __________

82. The bulbourethral gland is ________

83. The scrotum is __________

84. Vasectomy involves cutting and sealing of ________

85. Erection is the enlargement of ___________

86. 3 is _________

87. Nutrient to sperm cells is supplied by___________

88. Ejaculation occurs through____________

89. Sperm maturation occurs in__________

90. 6 is ________________

91. Fertilization occurs in:

a. Ovary

b. Oviduct

c. Uterus

d. Cervix

92. The site for implantation is:

a. Ovary

b. Uterine tube

c. Uterus

d. Cervix

93. The most advanced ovarian follicle is:

a. Graafian follicle

b. Luteal follicle

c. Corpus luteum

d. Corpus albicans

94. The estimated number of primary oocytes at birth is:

a. 2000 – 20,000

b. 20,000 – 200, 000

c. 200,000 – 2,000,000

d. 2,000,000 – 20,000,000

95. Blood vessels supplying the ovary are found in:

a. Ovarian cortex

b. Ovarian medulla

c. Tunica albuginea

d. Stromal cells

96. After ovulation, production of progesterone and estrogen is done majorly by:

a. Ovarian follicles

b. Corpus luteum

c. Corpus albicans

d. Corpus haemorrhagicum

97. Meiosis II in oogenesis is complete:

a. Before ovulation

b. After ovulation

c. Before fertilization

d. After fertilization

98. In a regular 28-day cycle, ovulation will most likely occur on:

a. 1st day

b. 7th day

c. 14th day

d. 28th day

99. The vulva includes the following structures except

a. Cervix

b. Vaginal orifice

c. Labia majora

d. Clitoris

100. In a regular 28-day cycle, the most unsafe period is:

a. Day 1 – 7

b. Day 8 – 10

c. Day 12 – 16

d. Day 21 – 28

 

 

 

 

 

 

 

                                 Answers

1. B

2. C

3. B

4. C

5. A

6. D

7. B

8. B

9. A

10. B

11. D

12. A

13. C

14. B

 

15. C

16. B

17. A

18. A

19. A

20. C

21. C

22. C

23. A

24. B

25. A

26. C

27. B

28. D

29. A

 

30. A

31. B

32. B

33. D

34. D

35. 4

36. B

37. B

38. A

39. A

40. B

41. C

42. C

43. A

44. A

 

45. B

46. B

47. A

48. D

49. D

50. B

51. D

52. A

53. C

54. B

55. D

56. B

57. C

58. A

59. C

 

60. SC

61. D

62. B

63. SA

64. C

65. B

66. A

67. D

68. D

69. B

70. D

71. B

72. A

73. D

74. B

 

75. A

76. B

77. C

78. B

79. A

80. A

81. Testis

82. 9

83. 11

84. 1

85. 4

86. Prostate gland

87. 7

88. 5

89. 10

 

90. Urinary bladder

91. B

92. C

93. A

94. SC

95. B

96. B

97. D

98. C

99. A

100. C