What Part of the Brain Controls the Thirst Mechanism

question 73

Multiple Choice

What part of the brain controls the thirst mechanism?

• A)medulla oblongata
• B)hypothalamus
• C)cerebellum
• D)pons

Compare gene regulation mechanisms in bacteria and eukaryotes.

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Definitions:

Circadian Rhythms

Physical, mental, and behavioral changes that follow a daily cycle, primarily responding to light and darkness in an organism's environment.

Suprachiasmatic Nucleus

A small region in the brain’s hypothalamus responsible for controlling circadian rhythms, which are the body's internal biological clock.

Pineal Gland

A small endocrine gland in the brain that produces melatonin, a hormone that regulates sleep-wake cycles.

Melatonin

A hormone produced by the pineal gland that regulates sleep and wakefulness cycles.