Sexual Reproduction In Humans

Question 1

What does the male reproductive system consist of?

Answer 1

• A pair of testes contained in an external sac, the scrotum
• the penis
• ducts connecting the testes with the penis
• accessory glands, I.e. a pair of seminal vesicles, a pair of cowper’s glands and the prostate gland. These glands secreted fluids that mix with the sperm to make semen.

Question 2

What are the seminiforous tubules?

Answer 2

Coiled tubes which are containers in the testes.

Question 3

What happens in the testes during sperm formation?

Answer 3

• The cells lining the seminiforous tubules undergo sperm formation.
• throughout the process the cells move towards the space running through the middle of the tubule.
• When spermatazoa reach the lumen they move through the tubule and collect in the vasa efferentia. (coiled tubes that carry sperm to the head of the epididymis.
• the sperm remain in the epididymis for a short while while they become motile.
• they then pass into the vas deferens, during ejaculation.