- Read the following statements and select the correct option.
I. ADAM (Androgen Deficiency in Ageing Males) is also
called male menopause, normally occurs in men above
the age of 50.
II. Testosterone is principal androgen which brings about
the growth of the secondary sex organs and secondary
sexual characters.
III. Semen has a pH of 7.35 to 7.50 so it is slightly alkaline.
I V. In male LH is called interstitial cells stimulating hormone
(ICSH), as it stimulates sertoli cells of the testes to
secrete androgens.
(a) I only (b) II and III
(c) III and IV (d) I and IV - The acrosome of human sperm is derived from
(a) Golgi body (b) distal centriole
(c) ring centriole (d) mitochondria. - Select the correct option with a group of structures representing
testis only.
(a) Seminiferous tubules, interstitial cells, prostate gland
(b) Sertoli cells, Leydig’s cells, vas efferentia
(c) Interstitial cells, seminiferous tubules, vas deferens
(d) Prostate gland, Leydig’s cells, sertoli cell - Study the given figure showing T.S. of mammalian testis and
identify the parts labelled as P, Q, R and S.
P
Q
R
S
P Q R S
(a) Leydig’s cells Sertoli cells Germinal
epithelium
Secondary
spermatocyte
(b) Sertoli cells Leydig’s
cells
Spermatogonium Spermatids
(c) Leydig’s cells Sertoli cells Primary
spermatocyte
Spermatids
(d) Sustentacular
cells
Leydig’s
cells
Spermatogonium Primary
spermatocyte
Exam Section
- The spermiogenesis involves all of the following except
(a) formation of mitochondrial sheath
(b) formation of proximal and distal centrioles
(c) formation of acrosome
(d) shortening of sperm. (MH CET 2017) - The prostatic fluid forms about ___ of total volume of
semen.
(a) 60% (b) 50%
(c) 40% (d) 30% (MH CET 2017)
3. Identify the correct statement on ‘inhibin’.
(a) Is produced by granulosa cells in ovary and inhibits the
secretion of LH
(b) Is produced by nurse cells in testes and inhibits the
secretion of LH
(c) Inhibits the secretion of LH, FSH and prolactin
(d) Is produced by granulosa cells in ovary and inhibits the
secretion of FSH (NEET Phase-I 2016)
4. Which of the following depicts the correct pathway of
transport of sperms?
(a) Rete testis → Efferent ductules → Epididymis → Vas
deferens
(b) Rete testis → Epididymis → Efferent ductules → Vas
deferens
(c) Rete testis → Vas deferens → Efferent ductules
→ Epididymis
(d) Efferent ductules → Rete testis → Vas deferens
→ Epididymis (NEET Phase-II 2016)
5. Which one of these is not an accessory glands in male
reproductive system?
(a) Cowper’s gland (b) Prostate gland
(c) Bartholin’s gland (d) Seminal vesicle
(Karnataka CET 2016)
6. The Leydig’s cells found in the human body are the secretory
source of
(a) glucagon (b) androgens
(c) progesterone (d) intestinal mucus.
(J & K CET 2015)
7. How many days does it take for spermatogenesis to take place?
(a) 40 to 65 days (b) 60 to 75 days
(c) 70 to 95 days (d) 50 to 65 days
(UP CPMT 2015)
8. Vasa efferentia are muscular tubes, each of which connects
(a) an epididymis to vas deferens
(b) vas deferens to seminal vesicle
(c) rete testis to vas deferens
(d) rete testis to epididymis. (JIPMER 2014)
9. The release of sperms from the seminiferous tubules is called
(a) spermiogenesis (b) spermiation
(c) spermatogenesis (d) fertilisation
(e) gametogenesis. (Kerala PMT 2014)
10. Starting from the maximum, arrange the following male
reproductive accessory organs in the correct order, based
on the amount of secretion.
(i) Prostate gland
(ii) Seminal vesicle
(iii) Bulbourethral gland
(a) (i) > (ii) > (iii) (b) (iii) > (ii) > (i)
(c) (ii) > (iii) > (i) (d) (ii) > (i) > (iii)
(AIIMS 2013)