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Hypothyroidism is excessive functional activity of the thyroid gland.

Millions of spermatozoa are released during one ejaculation.

___________ is the cyclic, physiologic uterine bleeding that occurs at about four-week intervals during the female’s reproductive period.

_________ is a highly infectious airborne disease that can begin in the lungs and spread through other parts of the body.

__________ is the wavelike muscular action of the alimentary canal.

___________ is the cyclic, physiologic uterine bleeding that occurs at about four-week intervals during the female’s reproductive period.

__________ is the wavelike muscular action of the alimentary canal.

Gestation is another term for ovulation.

What are the two main divisions of the peripheral nervous system?

The origin of a muscle is generally located _____.