Which structure holds the testes outside the body?

Which structure holds the testes outside the body?

• A. Testes
• B. Scrotum
• C. Vas deferens
• D. Penis

Answer: (B)

Testes require temperatures a few degrees cooler than core body temperature for efficient sperm production, so they reside outside the body in a specialized pouch called the scrotum. The scrotum, a sac of skin and muscle, houses the testes and helps regulate their temperature through the dartos and cremaster muscles, adjusting position as needed. The vas deferens is a duct that carries sperm from the epididymis toward the urethra, and the penis is the external organ for urination and ejaculation, but neither holds the testes outside the body.

Testes require temperatures a few degrees cooler than core body temperature for efficient sperm production, so they reside outside the body in a specialized pouch called the scrotum. The scrotum, a sac of skin and muscle, houses the testes and helps regulate their temperature through the dartos and cremaster muscles, adjusting position as needed. The vas deferens is a duct that carries sperm from the epididymis toward the urethra, and the penis is the external organ for urination and ejaculation, but neither holds the testes outside the body.