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Human Reproduction · Question 91

AIPMT 2009MCQEasy📈 Topic in 25% papers+4−1
1

Given below is a diagrammatic sketch for a portion of human male reproductive system. Select the correct set of the names of the parts labelled A, B, C, D. [Figure]

  1. A - Ureter, B - Seminal vesicle, C - Prostate, D - Bulbourethral gland
  2. A - Vas deferens, B - Seminal vesicle, C - Prostate, D - Bulbourethral gland
  3. A - Vas deferens, B - Seminal vesicle, C - Bulbourethral gland, D - Prostate
  4. A - Ureter, B - Prostate, C - Seminal vesicle, D - Bulbourethral gland

Answer

(2) A - Vas deferens, B - Seminal vesicle, C - Prostate, D - Bulbourethral gland

Solution

The duct A coming from the testis loops over the urinary bladder ⇒ vas deferens.

B, the sac-like gland lying behind the bladder and joining the vas deferens to form the ejaculatory duct ⇒ seminal vesicle.

C, the gland surrounding the urethra just below the bladder ⇒ prostate.

D, the small paired gland below the prostate ⇒ bulbourethral (Cowper's) gland.

As per NCERT, the male accessory glands include paired seminal vesicles, a prostate and paired bulbourethral glands.

Answer: (2)

AIPMT 2009

Keep practising — Human Reproduction

2

Foetal ejection reflex in human female is induced by

  1. Pressure exerted by amniotic fluid
  2. Differentiation of mammary glands
  3. Release of oxytocin from pituitary
  4. Fully developed foetus and placenta
AIPMT 2009
3

The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is:

  1. spermatocyte - spermatogonia - spermatid - sperms
  2. spermatogonia - spermatid - spermatocyte - sperms
  3. spermatid - spermatocyte - spermatogonia - sperms
  4. spermatogonia - spermatocyte - spermatid - sperms
AIPMT 2009
4

Which one of the following is the most likely root cause why menstruation is not taking place in regularly cycling human female?

  1. Retention of well-developed corpus luteum
  2. Maintenance of high concentration of sex hormones in the blood stream
  3. Maintenance of the hypertrophical endometrial lining
  4. Fertilisation of the ovum
AIPMT 2009
5

A change in the amount of yolk and its distribution in the egg will affect:

  1. Fertilisation
  2. Pattern of cleavage
  3. Formation of zygote
  4. Number of blastomeres produced
AIPMT 2009
6

In humans, at the end of the first meiotic division, the male germ cells differentiate into the:

  1. secondary spermatocytes
  2. spermatogonia
  3. primary spermatocytes
  4. spermatids
AIPMT 2008
7

Which one of the following statements is incorrect about menstruation?

  1. The beginning of the cycle of menstruation is called menarche
  2. At menopause in the female, there is especially abrupt increase in gonadotropic hormones
  3. The menstrual fluid can easily clot
  4. During normal menstruation about 40 ml blood is lost
AIPMT 2008
8

Which extraembryonic membrane in humans prevents desiccation of the embryo inside the uterus?

  1. Yolk sac
  2. Amnion
  3. Chorion
  4. Allantois
AIPMT 2008
9

Which part of ovary in mammals acts as an endocrine gland after ovulation?

  1. Stroma
  2. Vitelline membrane
  3. Germinal epithelium
  4. Graafian follicle
AIPMT 2007
10

Sertoli cells are regulated by the pituitary hormone known as-

  1. LH
  2. FSH
  3. GH
  4. Prolactin
AIPMT 2006
11

Withdrawal of which of the following hormones is the immediate cause of menstruation?

  1. Progesterone
  2. FSH
  3. FSH-RH
  4. Estrogen
AIPMT 2006

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