How is polyspermy prevented in humans?

Draw a labelled diagram of sperm.

How does the female gamete reach the uterus from ovary?

Explain the events that follow up to fertilization when the sperms come in contact with the ovum in the fallopian tube of a human female.

Write the function of each of the following:
Middle piece in human sperm.

What are the events taking place in the ovary and uterus during follicular phase of the menstrual cycle?

Spermatogenesis in human males is a hormone regulated process. Justify.

How is the milk production regulated by hormones in human female? Explain.

State the role of Oxytocin in parturition. What triggers its release from the pituitary?

A woman passes out hCG in the urine during the pregnancy. Why?