AP PSYCHOLOGY

Detailed explanation-1: -What does the hypothalamus do? The hypothalamus is a small area in the center of the brain. It helps produce hormones that regulate heart rate, body temperature, hunger, and the sleep-wake cycle.

Detailed explanation-2: -The Hypothalamus Detects Blood Osmolality In response to a high sodium level, the hypothalamus activates the thirst mechanism and concurrently stimulates the release of antidiuretic hormone. Thus, it is not only kidneys that stimulate antidiuretic-hormone release, but also the hypothalamus.

Detailed explanation-3: -The hypothalamus helps keep the body’s internal functions in balance. It helps regulate: Appetite and weight. Body temperature.

Detailed explanation-4: -Thirst is a sensation created by the hypothalamus that drives organisms to ingest water. Increased osmolarity in the blood acts on osmoreceptors that either stimulate the hypothalamus directly or cause the release of angiotensin II to stimulate the hypothalamus to cause thirst.

Detailed explanation-5: -The hypothalamus via various mechanisms controls appetite and food intake. It is also responsible for the control of hunger and thirst. In the basal hypothalamus there are several nuclei that regulate daily energy homeostasis. These control the appetite.