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Reproductive Organs in Males (AIPVT)

Description: Sperms testes penis semen Reproductive System of Male
Number of Questions: 15
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Tags: Sperms testes penis semen Reproductive System of Male
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The cells which provide nourishment (nurturing and development) to the developing sperms are

  1. leydig cells

  2. germinal epithelium

  3. sertoli cells

  4. epididymides


Correct Option: C
Explanation:

Sertoli cells are responsible for the nurturing and development of sperm cells.

Where are the sperms stored and maturated before passing out in ductus deferens?

  1. Efferent ductules

  2. Epididymis

  3. Seminiferous tubules

  4. Sertoli cells


Correct Option: B
Explanation:

Storage and maturation of sperms takes place in epididymis.

What is the middle portion of epididymis called?

  1. Caput

  2. Cauda

  3. Corpus

  4. Gubernaculum


Correct Option: C
Explanation:

Corpus is the middle of epididymis.

Which of the following functions do cells of leydig perform?

  1. Production of sperms

  2. Providing nourishment for developing sperms

  3. Secretion of male sex hormone

  4. Storage of sperms


Correct Option: C
Explanation:

Leydig cells secrete male sex hormone, i.e testosterone.

Which is the main energy source for sperm cells in semen?

  1. Maltose

  2. Fructose

  3. Galactose

  4. Sucrose


Correct Option: B
Explanation:

Fructose acts as the main energy source for sperm cells in semen.

In which of the following fluids is fibrinolysin present?

  1. Bulbourethral fluid

  2. Seminal fluid

  3. Prostatic fluid

  4. Vaginal fluid


Correct Option: C
Explanation:

Fibrinolysin is present in prostatic fluid.

Which of the following structures contribute to seminal plasma?

  1. Testes + seminal vesicle + prostate + bulbourethral gland

  2. Seminal vesicle + prostate

  3. Seminal vesicle + prostate + bulbourethral gland

  4. Prostate + bulbourethral gland


Correct Option: C
Explanation:

Secretions of seminal vesicle, prostate and bulbourethral gland contribute to seminal plasma.

Which penile tissue gets filled with blood and causes erection?

  1. Corpora spongiosum

  2. Corpora cavernosa

  3. Prepuce

  4. Tunica albuginosa


Correct Option: B
Explanation:

Corpora cavernosa consists of erectile tissue which causes erection on getting filled with blood.

How much do testes contribute to semen?

  1. 65-75%

  2. 2-5%

  3. 25-30%

  4. Less than 1%


Correct Option: B
Explanation:

Testes contribute 2-5% to semen.

Which of the following muscles regulate(s) the temperature of the testes?

  1. Dartos muscle

  2. Cremaster muscle

  3. Pubococcygeus muscle

  4. Both dartos and cremaster muscles


Correct Option: B
Explanation:

The cremaster muscle raises and lowers scrotum to help regulate temperature and promote spermatogenesis.

Which part of the reproductive system secretes testosterone?

  1. Seminiferous tubules

  2. Sertoli cells

  3. Leydig cells

  4. Prostate gland


Correct Option: C
Explanation:

Leydig cells secrete testosterone.

Pre-ejaculate secretion is carried out by the

  1. prostate gland

  2. leydig cells

  3. sertoli cells

  4. bulbourethral gland


Correct Option: D
Explanation:

Pre-ejaculate secretion is carried out by bulbourethral gland.

Where does meiosis take place in male reproductive organs?

  1. Sertoli cells

  2. Leydig cells

  3. Seminiferous tubules

  4. Urethra


Correct Option: C
Explanation:

Meiosis takes place in seminiferous tubules during gamete formation.

The characteristic odour of semen is due to

  1. cowper's gland fluid

  2. seminal fluid

  3. prostatic fluid

  4. mixing of urine


Correct Option: C
Explanation:

It gives characteristic odour to semen.

Which of the following are the cells that surround seminiferous tubules?

  1. Germ cells

  2. Sertoli cells

  3. Myoid cells

  4. Leydig cells


Correct Option: C
Explanation:

Peritubular myoid cells surround the seminiferous tubules.

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