Human Reproduction – Male Reproductive System: NEET MCQs with Answers

15 free questions on Human Reproduction – Male Reproductive System for NEET (UG), starting with previous-year NEET and AIPMT questions. Try each one, then tap Show answer for the answer and a short explanation.

Syllabus covered: Male Reproductive System: Microscopic anatomy of testis

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Question 1

Previous-year question
Select the correct sequence for the transport of sperm cells in the male reproductive system. [NEET 2019]
  1. Testis → Epididymis → Vasa efferentia → Rete testis → Inguinal canal → Urethra
  2. Seminiferous tubules → Rete testis → Vasa efferentia → Epididymis → Vas deferens → Ejaculatory duct → Urethra → Urethral meatus
  3. Seminiferous tubules → Vasa efferentia → Epididymis → Inguinal canal → Urethra
  4. Testis → Epididymis → Vasa efferentia → Vas deferens → Ejaculatory duct → Inguinal canal → Urethra
Show answer
Answer: (B) Seminiferous tubules → Rete testis → Vasa efferentia → Epididymis → Vas deferens → Ejaculatory duct → Urethra → Urethral meatus
Explanation: Sperms formed in the seminiferous tubules pass through the rete testis and vasa efferentia into the epididymis, then along the vas deferens and ejaculatory duct into the urethra and out at the urethral meatus.

Question 2

Previous-year question
The shared terminal duct of the reproductive and urinary systems in the human male is the [AIPMT 2014]
  1. urethra
  2. ureter
  3. vas deferens
  4. vasa efferentia
Show answer
Answer: (A) urethra
Explanation: The male urethra carries urine from the bladder and also semen from the ejaculatory ducts, so it is the common terminal duct of both systems.

Question 3

Previous-year question
Location and secretion of Leydig's cells are [AIPMT 1991]
  1. liver — cholesterol
  2. ovary — oestrogen
  3. testis — testosterone
  4. pancreas — glucagon
Show answer
Answer: (C) testis — testosterone
Explanation: The endocrine part of the testis consists of groups of interstitial cells or Leydig's cells scattered in the connective tissue between the seminiferous tubules. Stimulated by ICSH (LH) of the anterior pituitary, they secrete the steroid androgen testosterone.

Question 4

Previous-year question
Secretions from which one of the following are rich in fructose, calcium and some enzymes? [AIPMT 2010]
  1. Male accessory glands
  2. Liver
  3. Pancreas
  4. Salivary glands
Show answer
Answer: (A) Male accessory glands
Explanation: The male accessory glands — seminal vesicles, prostate and bulbourethral glands — together constitute the seminal plasma, which is rich in fructose, calcium and enzymes that nourish the sperms and help in their motility.

Question 5

Previous-year question
Seminal plasma in human males is rich in [AIPMT 2010, 2009]
  1. fructose and calcium
  2. glucose and calcium
  3. DNA and testosterone
  4. ribose and potassium
Show answer
Answer: (A) fructose and calcium
Explanation: Seminal plasma is the fluid part of semen contributed by the seminal vesicles, prostate and bulbourethral glands. It is rich in fructose, calcium and certain enzymes; fructose is the chief energy source for sperm motility.

Question 6

Previous-year question
Vasa efferentia are the ductules leading from [AIPMT 2010]
  1. testicular lobules to rete testis
  2. rete testis to vas deferens
  3. vas deferens to epididymis
  4. epididymis to urethra
Show answer
Answer: (B) rete testis to vas deferens
Explanation: The rete testis is connected to the epididymis by 12–20 fine tubules called vasa efferentia (ductuli efferentes). These collect sperms from inside the testis and transfer them towards the epididymis and thence to the vas deferens.

Question 7

Previous-year question
Sertoli cells are found in [AIPMT 2010]
  1. ovaries and secrete progesterone
  2. adrenal cortex and secrete adrenaline
  3. seminiferous tubules and provide nutrition to germ cells
  4. pancreas and secrete cholecystokinin
Show answer
Answer: (C) seminiferous tubules and provide nutrition to germ cells
Explanation: Sertoli cells are the tall, pyramidal nurse cells of the germinal epithelium of the seminiferous tubules. They nourish the developing spermatogenic cells and also secrete the glycoprotein hormone inhibin, which exerts negative feedback control on sperm production.
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Question 8

Previous-year question
The testes in humans are situated outside the abdominal cavity inside a pouch called scrotum. The purpose served is for [AIPMT 2011]
  1. escaping any possible compression by the visceral organs
  2. providing more space for the growth of epididymis
  3. providing a secondary sexual feature for exhibiting the male sex
  4. maintaining the scrotal temperature lower than the internal body temperature
Show answer
Answer: (D) maintaining the scrotal temperature lower than the internal body temperature
Explanation: The scrotum keeps the testes at a temperature about 2–2.5°C below the core body temperature. This lower temperature is essential for normal spermatogenesis.

Question 9

Previous-year question
If for some reason, the vasa efferentia in the human reproductive system get blocked, the gametes will not be transported from [AIPMT 2011]
  1. epididymis to vas deferens
  2. ovary to uterus
  3. vagina to uterus
  4. testes to epididymis
Show answer
Answer: (D) testes to epididymis
Explanation: The vasa efferentia are 10–20 fine tubules that connect the rete testis with the epididymis. If they are blocked, sperms cannot pass out of the testis into the epididymis.

Question 10

Previous-year question
The Leydig cells as found in the human body are the secretory source of [AIPMT 2012]
  1. progesterone
  2. intestinal mucus
  3. glucagon
  4. androgens
Show answer
Answer: (D) androgens
Explanation: Leydig cells (interstitial cells) lie in the connective tissue between the seminiferous tubules and secrete androgens, chiefly testosterone. Androgens stimulate spermatogenesis, develop male secondary sexual characters and influence male sexual behaviour.

Question 11

Previous-year question
The shared terminal duct of the reproductive and urinary system in the human male is [AIPMT 2014]
  1. urethra
  2. ureter
  3. vas deferens
  4. vasa efferentia
Show answer
Answer: (A) urethra
Explanation: In the human male the urethra carries both urine from the urinary bladder and semen from the ejaculatory ducts, and is therefore called the urinogenital duct. The ureter only carries urine from the kidney to the bladder.

Question 12

Previous-year question
Which of the following depicts the correct pathway of transport of sperms? [NEET 2016, Phase II]
  1. Rete testis → Efferent ductules → Epididymis → Vas deferens
  2. Rete testis → Epididymis → Efferent ductules → Vas deferens
  3. Rete testis → Vas deferens → Efferent ductules → Epididymis
  4. Efferent ductules → Rete testis → Vas deferens → Epididymis
Show answer
Answer: (A) Rete testis → Efferent ductules → Epididymis → Vas deferens
Explanation: Sperms formed in the seminiferous tubules first collect in the rete testis. They then pass through the efferent ductules (vasa efferentia) into the epididymis for maturation and storage, and from there into the vas deferens.

Question 13

Previous-year question
Which option correctly matches an endocrine gland with its hormone and function? [2000]
  1. Corpus luteum — oestrogen — essential for maintenance of the endometrium
  2. Ovary — FSH — stimulates follicular development and the secretion of oestrogens
  3. Leydig cells — androgen — initiates the production of sperm
  4. Placenta — oestrogen — initiates the secretion of milk
Show answer
Answer: (C) Leydig cells — androgen — initiates the production of sperm
Explanation: Androgens secreted by the Leydig (interstitial) cells of the testis stimulate the process of spermatogenesis. FSH is a pituitary hormone, not an ovarian one; the endometrium is maintained mainly by progesterone; and milk secretion is initiated by prolactin, not placental oestrogen.

Question 14

Previous-year question
Seminal plasma in humans is rich in [2008]
  1. fructose and certain enzymes but poor in calcium
  2. fructose and calcium but has no enzymes
  3. fructose, calcium and certain enzymes
  4. glucose and certain enzymes but has no calcium
Show answer
Answer: (C) fructose, calcium and certain enzymes
Explanation: Seminal plasma is the fluid contributed by the seminal vesicles, prostate and bulbourethral glands. It is rich in fructose, which is the energy source for sperm motility, in calcium, and in enzymes; it is also slightly alkaline, which neutralises the acidity of the vaginal tract.

Question 15

Previous-year question
Vasa efferentia are the ductules leading from the [2010]
  1. vas deferens to the epididymis
  2. testicular lobules to the rete testis
  3. epididymis to the urethra
  4. rete testis to the vas deferens
Show answer
Answer: (D) rete testis to the vas deferens
Explanation: Sperm leaving the seminiferous tubules pass through the rete testis and then along the vasa efferentia, which conduct them out of the testis to the epididymis and thence to the vas deferens. The route is seminiferous tubules, rete testis, vasa efferentia, epididymis, vas deferens.

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