Question

slide #116
an almond - shaped male gland responsible for the production and secretion of male
hormones and the male reproductive cells, sperm, which are required for reproduction to occur.

○ prostate

● testis (or testicle)

○ scrotum

○ epididymis

question 14 0.5 pts
slides #119 & #120
in some animals, the testicles are tucked safely inside the male body. in the body of the
human male, however, the testicles hang loosely outside the male’s body, in the scrotum.
why?

○ there is no reason behind the design; sperm quality and quantity would not be affected either way.

○ human sperm develop best at a temperature hotter than the normal human body temperature of
98.6°f.

● this way an almost constant temperature of 94°f of the testicles can be maintained, which is
optimal for the development of sperm.

○ the scrotum can tighten and move the testicles closer to the body to cool them, or it can relax and
move the testicles away from the body, which warms them.

Explanation:

The testes (or testicles) are almond - shaped glands in males. They produce male hormones (like testosterone) and sperm. For sperm development, a specific temperature is needed. In humans, the scrotum helps maintain the testes at an optimal temperature (around \(94^{\circ}F\)) which is lower than the normal body temperature (\(98.6^{\circ}F\)). If the testes were inside the body (like in some other animals), the higher body temperature would not be ideal for sperm production.

Answer:

For the first part (identifying the gland): testis (or testicle).
For the second part (reason for testes location in humans): This way an almost constant temperature of \(94^{\circ}F\) of the testicles can be maintained, which is optimal for the development of sperm.