Question

a married couple is trying to conceive a child. the man works outside during the hot summer months and is also taking medications that cause involuntary muscle contractions. what effect will this have on his sperm production?

he will experience a decrease in sperm production due to the scrotum being close to body temperature if not higher.

he will experience an increase in sperm production but a decrease in the production of semen to distribute the sperm in the female reproductive tract.

he will experience a higher number of sperm cells produced because the heat will activate sperm production.

he will show no changes in the production of sperm.

Explanation:

Sperm production (spermatogenesis) requires a temperature slightly lower than the body's core temperature. The scrotum helps regulate this by moving away or closer to the body. Working outside in hot weather and taking medications that cause involuntary muscle contractions (which may affect scrotal positioning) can lead to the scrotum being closer to the body, increasing its temperature. Higher temperatures in the scrotum inhibit sperm production, leading to a decrease. The other options are incorrect: heat does not activate or increase sperm production, and there will be changes (so the "no changes" option is wrong), and the option about semen production decrease is not related to the heat/medication's effect on sperm production directly in this context.

Answer:

A. He will experience a decrease in sperm production due to the scrotum being close to body temperature if not higher.