Reproductive System MCQ, CEE, MBBS entrance Nepal Quiz

Posted by Nepal Quiz

Wednesday, 30 October 2024

_zoology

Quiz

1. What is the primary function of the male reproductive system?

A) Producing eggs
B) Producing sperm and hormones
C) Nurturing the fetus
D) Menstruation

2. Where does fertilization of the egg typically occur?

A) Uterus
B) Ovary
C) Fallopian tube
D) Vagina

3. Which hormone is primarily responsible for the development of male secondary sexual characteristics?

A) Estrogen
B) Progesterone
C) Testosterone
D) Luteinizing hormone

4. What structure in the female reproductive system sheds during menstruation?

A) Ovary
B) Fallopian tube
C) Uterine lining
D) Vagina

5. Which male reproductive organ produces sperm?

A) Prostate gland
B) Seminal vesicle
C) Testes
D) Epididymis

6. What is the primary function of the ovaries?

A) Produce estrogen
B) Produce eggs
C) Nourish the fetus
D) Regulate the menstrual cycle

7. What is the name of the female reproductive cycle that involves ovulation and menstruation?

A) Menstrual cycle
B) Fertilization cycle
C) Ovulatory cycle
D) Follicular cycle

8. Which structure connects the ovaries to the uterus?

A) Fallopian tubes
B) Vagina
C) Cervix
D) Endometrium

9. What is the role of the prostate gland?

A) Produces eggs
B) Produces sperm
C) Produces seminal fluid
D) Regulates testosterone

10. What type of cell division produces sperm and eggs?

A) Mitosis
B) Meiosis
C) Binary fission
D) Fragmentation

11. During which phase of the menstrual cycle does ovulation occur?

A) Follicular phase
B) Luteal phase
C) Menstrual phase
D) Ovulatory phase

12. What is the name of the hormone that triggers ovulation?

A) Estrogen
B) Progesterone
C) Luteinizing hormone
D) Follicle-stimulating hormone

13. What is the term for the period of time when a female is most fertile?

A) Menstruation
B) Ovulation
C) Menopause
D) Follicular phase

14. Which hormone is primarily responsible for maintaining pregnancy?

A) Estrogen
B) Testosterone
C) Progesterone
D) Luteinizing hormone

15. What is the role of the fimbriae in the female reproductive system?

A) Produce eggs
B) Capture the egg after ovulation
C) Protect the uterus
D) Produce hormones

16. Which part of the male reproductive system stores sperm before ejaculation?

A) Testes
B) Seminal vesicle
C) Epididymis
D) Prostate gland

17. The structure that opens into the vagina and protects the uterus is called the:

A) Fallopian tube
B) Ovaries
C) Cervix
D) Uterus

18. What is the main function of the scrotum?

A) Produce sperm
B) Regulate temperature of the testes
C) Produce hormones
D) Transport sperm

19. Which reproductive system is affected by the condition known as polycystic ovary syndrome (PCOS)?

A) Male reproductive system
B) Female reproductive system
C) Both systems
D) Neither system

20. What is the primary purpose of the menstrual cycle?

A) Produce testosterone
B) Prepare the body for potential pregnancy
C) Eliminate waste
D) Maintain male reproductive health

21. Which hormone is responsible for the development of female secondary sexual characteristics?

A) Testosterone
B) Luteinizing hormone
C) Estrogen
D) Progesterone

22. What is the function of the corpus luteum?

A) Produce testosterone
B) Produce estrogen and progesterone
C) Transport eggs
D) Produce sperm

23. Which male reproductive structure contributes the largest volume of seminal fluid?

A) Prostate gland
B) Seminal vesicle
C) Epididymis
D) Testes

24. What is the main purpose of the acrosome in sperm?

A) Provide energy
B) Protect the sperm's DNA
C) Help penetrate the egg's outer layer
D) Aid in sperm motility

25. What is the average duration of the menstrual cycle?

A) 14 days
B) 21 days
C) 28 days
D) 35 days

26. Which phase of the menstrual cycle involves the thickening of the uterine lining?

A) Follicular phase
B) Ovulatory phase
C) Luteal phase
D) Menstrual phase

27. What happens during the luteal phase of the menstrual cycle?

A) Ovulation occurs
B) The uterine lining is shed
C) The corpus luteum forms
D) Estrogen levels drop

28. Which of the following is a method of contraception that involves hormonal regulation?

A) Barrier methods
B) Natural family planning
C) Birth control pills
D) Withdrawal

29. What is the main role of the vagina?

A) Produce eggs
B) Transport sperm
C) Serve as the birth canal
D) All of the above

30. Which condition occurs when an embryo implants outside the uterus?

A) Ectopic pregnancy
B) Miscarriage
C) Molar pregnancy
D) Placenta previa

31. What is the primary function of the Leydig cells in the testes?

A) Produce sperm
B) Produce testosterone
C) Regulate temperature
D) Store sperm

32. The release of an egg from the ovary is known as:

A) Ovulation
B) Menstruation
C) Fertilization
D) Implantation

33. What is the primary role of the placenta during pregnancy?

A) Nourish the fetus
B) Produce hormones
C) Filter waste
D) All of the above

34. Which of the following structures contains the developing fetus during pregnancy?

A) Ovary
B) Uterus
C) Fallopian tube
D) Vagina

35. What is the term for the first menstrual period?

A) Menopause
B) Menarche
C) Menstruation
D) Ovulation

36. Which reproductive hormone is produced by the anterior pituitary gland?

A) Estrogen
B) Progesterone
C) Follicle-stimulating hormone
D) Testosterone

37. Which condition is characterized by the absence of menstruation?

A) Menopause
B) Amenorrhea
C) Dysmenorrhea
D) Oligomenorrhea

38. What is the purpose of the luteal phase of the menstrual cycle?

A) Prepare the body for ovulation
B) Support early pregnancy
C) Shed the uterine lining
D) Produce estrogen

39. Which structure is responsible for the production of milk in females?

A) Ovaries
B) Uterus
C) Mammary glands
D) Fallopian tubes

40. What is the effect of testosterone on male reproductive health?

A) Decreases libido
B) Increases muscle mass
C) Causes infertility
D) Inhibits sperm production

41. What is the primary role of the Sertoli cells in the testes?

A) Produce testosterone
B) Nourish developing sperm
C) Store sperm
D) Regulate temperature

42. Which structure is responsible for the hormonal regulation of the female reproductive system?

A) Uterus
B) Ovaries
C) Hypothalamus
D) Pituitary gland

43. Which of the following hormones is primarily responsible for the follicular phase of the menstrual cycle?

A) Luteinizing hormone
B) Follicle-stimulating hormone
C) Progesterone
D) Testosterone

44. What triggers the onset of menstruation?

A) High estrogen levels
B) Low progesterone levels
C) High testosterone levels
D) Low FSH levels

45. In which part of the male reproductive system does sperm maturation primarily occur?

A) Seminal vesicle
B) Epididymis
C) Prostate gland
D) Vas deferens

46. What is the significance of the zona pellucida?

A) Provides energy to sperm
B) Facilitates sperm motility
C) Protects the oocyte
D) Enhances implantation

47. Which phase of spermatogenesis involves the formation of spermatozoa from spermatids?

A) Spermatocytogenesis
B) Spermiogenesis
C) Spermatogenesis
D) Spermatogonia phase

48. What is the role of the acrosome in sperm?

A) To provide nutrients
B) To store genetic material
C) To penetrate the egg's membrane
D) To maintain pH

49. Which of the following best describes the process of oogenesis?

A) Continuous production of eggs
B) Limited number of oocytes produced before birth
C) Sperm production throughout life
D) Rapid division of oocytes

50. Which hormone is released by the placenta to maintain pregnancy?

A) Oxytocin
B) Human chorionic gonadotropin (hCG)
C) Estrogen
D) Progesterone

51. Which anatomical structure acts as a barrier to prevent the entry of pathogens into the uterus?

A) Endometrium
B) Cervix
C) Vagina
D) Fallopian tube

52. What occurs during the luteal phase of the menstrual cycle?

A) Estrogen levels decrease
B) The corpus luteum forms
C) Ovulation occurs
D) Follicles mature

53. Which of the following conditions is characterized by an abnormally low level of testosterone in males?

A) Gynecomastia
B) Androgen insensitivity syndrome
C) Klinefelter syndrome
D) Hypogonadism

54. Which hormone is primarily responsible for stimulating the production of milk after childbirth?

A) Prolactin
B) Oxytocin
C) Estrogen
D) Progesterone

55. What is the role of the luteinizing hormone (LH) in the female reproductive system?

A) Stimulate follicle growth
B) Trigger ovulation
C) Maintain the corpus luteum
D) Promote milk production

56. The primary site of fertilization in the female reproductive system is the:

A) Ovary
B) Uterus
C) Fallopian tube
D) Vagina

57. Which type of cells undergoes meiosis to produce gametes in females?

A) Oogonia
B) Oocytes
C) Ova
D) Follicle cells

58. What is the term for the surgical procedure to tie the fallopian tubes to prevent pregnancy?

A) Hysterectomy
B) Tubal ligation
C) Vasectomy
D) Laparoscopy

59. Which of the following statements about the menstrual cycle is true?

A) It lasts exactly 28 days for all women
B) Ovulation occurs on day 14 for all women
C) The luteal phase is always 14 days long
D) The menstrual cycle varies among individuals

60. Which of the following conditions is characterized by the presence of endometrial tissue outside the uterus?

A) Endometriosis
B) Ovarian cysts
C) Polycystic ovary syndrome
D) Uterine fibroids

61. What is the main purpose of the umbilical cord during pregnancy?

A) Transport oxygen to the mother
B) Provide nutrients to the mother
C) Connect the fetus to the placenta
D) Filter waste from the fetus

62. Which type of cell division occurs during oogenesis?

A) Mitosis
B) Meiosis
C) Binary fission
D) Budding

63. What is the main function of the epididymis?

A) Store sperm
B) Produce testosterone
C) Facilitate fertilization
D) Aid in the maturation of sperm

64. What is the primary role of the corpus luteum?

A) Produce eggs
B) Secrete estrogen and progesterone
C) Facilitate fertilization
D) Regulate the menstrual cycle

65. Which hormone primarily regulates the secretion of luteinizing hormone (LH) and follicle-stimulating hormone (FSH)?

A) Estrogen
B) Progesterone
C) Gonadotropin-releasing hormone (GnRH)
D) Testosterone

66. Which phase of the menstrual cycle is characterized by the highest levels of estrogen?

A) Follicular phase
B) Luteal phase
C) Menstrual phase
D) Ovulatory phase

67. What is the primary role of the prostate gland?

A) Produce sperm
B) Secrete seminal fluid
C) Store sperm
D) Regulate hormone levels

68. What is the result of fertilization?

A) Formation of a zygote
B) Development of an embryo
C) Release of hormones
D) Initiation of menstruation

69. What is the main cause of primary amenorrhea?

A) Hormonal imbalance
B) Structural abnormalities
C) Genetic factors
D) All of the above

70. Which type of contraception prevents ovulation by altering hormone levels?

A) IUD
B) Barrier methods
C) Hormonal birth control
D) Natural family planning

71. What role do prostaglandins play in the menstrual cycle?

A) Regulate hormone secretion
B) Induce uterine contractions
C) Promote follicle development
D) Prevent ovulation

72. Which of the following structures is primarily involved in the transport of sperm?

A) Vas deferens
B) Urethra
C) Epididymis
D) Seminal vesicle

73. What is the purpose of the cervical mucus during ovulation?

A) Prevents sperm entry
B) Provides nutrients to sperm
C) Facilitates sperm passage
D) Inhibits fertilization

74. The term 'fertilization window' refers to:

A) The time when menstruation occurs
B) The time frame when fertilization can occur after ovulation
C) The time frame for sperm storage in the female reproductive tract
D) The time when implantation occurs

75. Which of the following is a common symptom of polycystic ovary syndrome (PCOS)?

A) Irregular periods
B) Excessive hair growth
C) Acne
D) All of the above

76. What is the effect of low progesterone levels during the luteal phase?

A) Maintains the uterine lining
B) Triggers menstruation
C) Supports early pregnancy
D) Stimulates ovulation

77. Which hormone is primarily responsible for the development of male secondary sexual characteristics?

A) Estrogen
B) Progesterone
C) Testosterone
D) Luteinizing hormone

78. The structure that connects the embryo to the mother's blood supply is called:

A) Amniotic sac
B) Placenta
C) Umbilical cord
D) Chorion

79. Which of the following can be a consequence of untreated sexually transmitted infections (STIs)?

A) Infertility
B) Ectopic pregnancy
C) Pelvic inflammatory disease
D) All of the above

80. Which hormone surge triggers ovulation in the menstrual cycle?

A) Estrogen
B) Follicle-stimulating hormone
C) Luteinizing hormone
D) Progesterone

81. The primary function of the corpus albicans is to:

A) Support the placenta
B) Inhibit ovulation
C) Regulate menstrual flow
D) Degenerate after ovulation

82. What is the role of relaxin during pregnancy?

A) Stimulate uterine contractions
B) Support fetal development
C) Relax pelvic ligaments
D) Promote lactation

83. In males, which gland contributes the most fluid to semen?

A) Prostate gland
B) Bulbourethral gland
C) Seminal vesicle
D) Testes

84. What is the primary function of the endometrium?

A) Facilitate sperm transport
B) Support fetal development
C) Provide a site for implantation
D) Produce hormones

85. The human embryonic period lasts for how long after fertilization?

A) 2 weeks
B) 4 weeks
C) 8 weeks
D) 12 weeks

86. The phenomenon where an egg is released from the ovary is known as:

A) Menstruation
B) Folliculogenesis
C) Ovulation
D) Fertilization

87. Which of the following is NOT a function of testosterone?

A) Stimulate spermatogenesis
B) Promote development of male secondary sexual characteristics
C) Increase bone density
D) Control the menstrual cycle

88. What is the role of the zona reaction during fertilization?

A) Stimulates sperm production
B) Prevents polyspermy
C) Facilitates implantation
D) Supports embryo growth

89. Which of the following describes a common cause of secondary amenorrhea?

A) Hormonal imbalance
B) Structural abnormalities
C) Extreme weight loss
D) All of the above

90. What is the primary purpose of the amniotic fluid?

A) Nourish the fetus
B) Protect the fetus
C) Facilitate gas exchange
D) Produce hormones

91. Which hormone is responsible for the 'let-down' reflex during breastfeeding?

A) Prolactin
B) Oxytocin
C) Estrogen
D) Progesterone

92. Which condition involves the abnormal growth of uterine tissue outside the uterus?

A) Uterine fibroids
B) Endometriosis
C) Ovarian cysts
D) Polycystic ovary syndrome

93. What is the role of luteal hormone during the menstrual cycle?

A) Stimulate follicle development
B) Trigger ovulation
C) Maintain the uterine lining
D) Induce menstruation

94. Which type of cells in the testes are responsible for the production of testosterone?

A) Leydig cells
B) Sertoli cells
C) Germ cells
D) Spermatogonia

95. Which structure serves as the pathway for sperm during ejaculation?

A) Epididymis
B) Vas deferens
C) Urethra
D) Seminal vesicle

96. What is the most common site of ectopic pregnancy?

A) Ovaries
B) Uterus
C) Fallopian tubes
D) Abdominal cavity

97. Which hormone plays a crucial role in the development of the placenta?

A) Estrogen
B) Progesterone
C) Human chorionic gonadotropin (hCG)
D) Relaxin

98. Which structure is responsible for the release of the egg during ovulation?

A) Follicle
B) Corpus luteum
C) Ovary
D) Endometrium

99. What is the main reason for the onset of menopause?

A) Increase in estrogen levels
B) Decrease in follicle production
C) Increase in progesterone levels
D) Decrease in luteinizing hormone levels

100. What is the significance of the menstrual cycle for female reproduction?

A) It prepares the uterus for pregnancy
B) It regulates hormone levels
C) It promotes egg maturation
D) All of the above

Shyam Sundar

Wednesday, 30 October 2024