Question

The testis are situated outside the abdominal cavity in scrotum as it helps to

• A. Regulates harmone secretion
• B. Store sperm
• C. Release sperm
• D. Maintain the low temperature

Answer 1

The Correct Option is D

The scrotum is a pouch-like structure located outside the abdominal cavity that houses the testes. This positioning is important for the proper development and function of the testes. The temperature inside the scrotum is slightly lower than the core body temperature.

This lower temperature is crucial for spermatogenesis, the process of sperm production, as it is more favorable for the survival and development of sperm cells. The testes need to be kept at a cooler temperature than the rest of the body because high temperatures can be detrimental to sperm production and quality. By being outside the abdominal cavity in the scrotum, the testes are able to be exposed to a lower temperature, which helps in maintaining the optimal conditions for spermatogenesis.

Therefore, the correct answer is (D) maintain the low temperature.

Answer 2

The correct answer is:

Option 4: Maintain the low temperature

Explanation:

The testes are situated outside the abdominal cavity in the scrotum to maintain a temperature lower than the normal body temperature. This lower temperature is crucial for spermatogenesis (the production of sperm), as sperm production is most efficient at temperatures a few degrees lower than the body's core temperature.

The other options are incorrect because:

Regulating hormone secretion (Option 1) is not the primary reason for the testes being outside the abdominal cavity. Hormones like testosterone are secreted by the testes regardless of their location.

Storing sperm (Option 2) occurs in the epididymis (a structure connected to the testes), not due to the location of the testes themselves.

Releasing sperm (Option 3) involves the vas deferens and is part of ejaculation, which occurs in the scrotum, but the low temperature is what primarily aids in sperm production.

Thus, the main reason the testes are in the scrotum is to maintain a low temperature for optimal sperm production.