The testes are situated outside the abdominal cavity within a pouch called scrotum. This is necessary as:
1. | The scrotum can contain lengthy ducts for the transfer of sperms |
2. | Scrotum helps in maintaining the low temperature of the testes necessary for spermatogenesis |
3. | Scrotum reduces the pressure around testes necessary for spermatogenesis |
4. | Scrotum can store huge amounts of sperms |
Match column I with column II and select the correct option using the codes given below
Column 1 Column II
A. Mons pubis 1. Embryo formation
B. Antrum 2. Sperm
C. Trophectoderm 3. Female external genitalia
D. Nebenkern 4. Graafian follicle
Codes
A B C D
(a) 3 4 2 1
(b) 3 4 1 2
(c) 3 1 4 2
(d) 1 4 3 2
The testes in humans are situated outside the abdominal cavity inside a pouch called scrotum. The purpose served is for
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 |
Assertion : In human male, testes are extra-abdominal and lie in scrotal sacs.
Reason : Scrotum acts as thermoregulator and keeps testicular temperature lower by 2°C normal spermatogenesis.