Testes
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- It is composed of a single layer of tall and slender cells
- Their nuclei are located at the base
- Free surface may have microvilli
- They are found in the walls of blood vessels and air sac of lungs
- DNA
- mitochondria
- hydrolytic enzymes
- fructose
- Testosterone
- GnRH
- Gonadotropin
- Inhibin
R: Mucosal epithelium of the oviduct contains non ciliated cells with microvilli called peg cells.
- Both A and R are correct and R is the correct explanation of A.
- Both A and R are correct but R is not the correct explanation of A.
- A is correct but R is incorrect.
- Both A and R are incorrect.
- Mucosa ⇒ Adventitia ⇒ Muscularis
- Muscularis ⇒ Adventitia ⇒ Mucosa
- Adventitia ⇒ Mucosa ⇒Muscularis
- Adventitia ⇒ Muscularis ⇒ Mucosa
- (i)- mons pubis, (ii)- anus
- (i)- oviducts, (ii)- ovary
- (i)- vagina, (ii)- uterus
- (i)- clitoris, (ii)- Bartholin's gland
Each testis is covered by a fibrous connective tissue covering called
Tunica albuginea
Rete testis
Stroma
None of these
Name the duct which carries the sperms from epididymis to urethra.
- In the abdominal cavity in adult males
- In the scrotum in adult males
- In the abdominal cavity till seven months of pregnancy
- Testes are formed only in the 8 month old foetus
- It has no role in sperm concentration.
- The epididymis has pseudostratified columnar epithelium.
- It has no role in sperm maturation.
- The transport along the epididymis is anastalsis.
- at least 30 per cent sperms must have normal shape and size and at least 30 per cent of them must show vigorous motility
- at least 20 per cent sperms must have normal shape and size and at least 30 per cent of them must show vigorous motility
- at least 60 per cent sperms must have normal shape and size and at least 40 per cent of them must show vigorous motility
- at least 10 per cent sperms must have normal shape and size and at least 20 per cent of them must show vigorous motility
- 40, 60
- 70, 30
- 60, 40
- 30, 70
- sperms after fertilisation
- release of sperm from seminiferous tubules
- formation of spermatids
- sperm before fertilisation
- 40, 60
- 70, 30
- 60, 40
- 30, 70
The testes in humans are situated outside the abdominal cavity inside a pouch called scrotum. It serves the purpose of
escaping any possible compression by the visceral organs
providing more space for the growth of epididymis
providing a secondary sexual feature for exhibiting the male sex
maintaining the scrotal temperature lower than the internal body temperature
Which part of the testes produces sperm?
Reason (R): Prostate gland and seminal vesicles occupy maximum space
- Both A and R are correct and R is the correct explanation of A
- Both A and R are correct and R is not the correct explanation of A
- A is correct but R is incorrect
- Both A and R are incorrect
- DNA
- fructose
- hydrolytic enzymes
- mitochondria
(a) produces sperms?
- at least 30 per cent sperms must have normal shape and size and at least 30 per cent of them must show vigorous motility
- at least 60 per cent sperms must have normal shape and size and at least 40 per cent of them must show vigorous motility
- at least 20 per cent sperms must have normal shape and size and at least 30 per cent of them must show vigorous motility
- at least 10 per cent sperms must have normal shape and size and at least 20 per cent of them must show vigorous motility
The seminiferous epithelium contains only proliferative cells
The interstitial tissue contains few capillaries
Functional compartmentalisation of the seminiferous epithelium depends on tight junctions.
The seminiferous epithelium contains numerous capillaries.
i. The hilum is the point of entry and exit for the blood vessels in the ovary
ii. Uterine atrophy can be attributed to dysfunctional ovaries.
iii. Tunica vaginalis lies inner to tunica albuginea in the female reproductive system
iv. The germinal epithelium contains simple columnar epithelium.
- I and II only
- I, II and III
- I, III and IV
- I and IV only
- scrotum
- follicle
- hymen
What cells are responsible for the blood-testis barrier?
In the given cross section of testis, identify the labelled parts and match them with their relative description given alongside.
i. storage area for the sperm
ii. carry the sperm from the testis to the epididymis
iii. encases the testis and forms testicular lobules
iv. the seminiferous tubles open into this
v. has germinal and sertoli cells
1-ii, 2-i, 3-iii, 4-v, 5-iv
1-iv, 2-iii, 3-ii, 4-v, 5-i
1-iii, 2-i, 3-iv, 4-v, 5-ii
1-iii, 2-v, 3-iv, 4-ii, 5-i
- fructose
- DNA
- hydrolytic enzymes
- mitochondria
- Sperms produced in scrotal sac are more in number
- Sperms produced in abdominal cavity are provided with less motility
- Sperms produced in scrotal sac require lesser temperature for their best fertilization capacity
- Sperms produced in scrotal sac are bigger
- Gonadotropin
- Testosterone
- GnRH
- Inhibin
- vas deferens with the prostatic duct
- vas deferens with the duct of the seminal vesicle
- vasa efferentia with the prostatic duct
- vas deferens with the duct of bulbourethral gland