Explain why testes must be outside the body to make healthy sperm?
Answers
Answer:
For normal sperm development, the testes must be at a temperature slightly cooler than the body temperature. Special muscles in the wall of the scrotum allow it to contract (tighten) and relax, moving the testicles closer to the body for warmth and protection or farther away from the body to cool the temperature.
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Stay safe
The scrotum hangs outside the body because it needs to maintain a slightly lower temperature than the rest of the body. This lower temperature helps to maintain sperm production. Scrotal tissues help protect the structures inside the testicles, where sperm and important hormones are produced.
In addition, the scrotum protects the testicles and major blood vessels, as well as tubes that release sperm from the testicles into the penis for ejaculation.
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