Which one of the following surrounds the testicles?
Correct answer: D. Scrotum
- A. Penis
- B. Urethra
- C. Sperm duct
- D. Scrotum
Explanation
The structure that surrounds the testicles is the scrotum. The scrotum is a pouch of skin and muscle that houses and protects the testes. It is located outside the abdominal cavity, hanging below the penis. The position of the testes outside the body in the scrotum is important for maintaining an optimal temperature for spermatogenesis (sperm production), as the testes require a slightly lower temperature than the rest of the body.
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Human reproduction covers the male and female reproductive organs, gamete formation, fertilization, implantation and hormonal regulation. The menstrual cycle includes ovarian and uterine changes controlled by pituitary and ovarian hormones, while sexually transmitted diseases are studied through their causes, transmission, symptoms, prevention and effects on fertility.
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