Question

In humans, the testis temperature is maintained below the core body temperature with the help of

• A. proximal tubule
• B. loop of Henle
• C. scrotum
• D. seminal vesicles

Hint:

The scrotum plays a crucial role in maintaining an optimal temperature for sperm production by keeping the testes cooler than the rest of the body.

Answer 1

The Correct Option is C

Step 1: Understanding testis temperature regulation.
The testis needs to be kept at a temperature lower than the core body temperature for optimal sperm production. This is achieved by the scrotum, which hangs outside the body to provide a cooler environment.

Step 2: Analyzing the options.
(A) proximal tubule: Incorrect — The proximal tubule is part of the kidney, not involved in regulating testis temperature.
(B) loop of Henle: Incorrect — The loop of Henle is involved in kidney function, not temperature regulation of the testis.
(C) scrotum: Correct — The scrotum holds the testes outside the body, which helps in maintaining a lower temperature.
(D) seminal vesicles: Incorrect — Seminal vesicles produce seminal fluid, not involved in temperature regulation of the testes.

Step 3: Conclusion.
The correct answer is (C) scrotum.