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psych U8M38

hunger motivation

lateral hypothamalus tells you to eat
ventromedial hypothalamus tells you not to eat
glucostatic hypothesis if your blood glucose drops, your brain triggers hunger, and vice versa.
lipostatic hypothesis low levels of leptin triggers hunger and vice versa.
ghrelin secreted by the stomach--"I'm hungry"
orexin secreted by hypothalamus; hunger triggering
leptin protein hormone secreted by fat cells
PYY not hungry signal
basic metabolic rate how much energy we use to maintain our body when at rest
what happens to the basic metabolic rate with decreased food intake? the rate drops, as well as our energy expenditure
osmoreceptors if intracellular water levels are low, they release antidiuretic
volumetric receptors if extracellular H2O levels are low, angiotension is released to stimulate thirst.
antidiuretic hormone reduces urine and increases thirst; eliminated when H2O restored
angiotensin stimulates thirst
obesity being 30% over normal body weight
social/cultural influence on the motivation to eat culture-specific foods
situational influence on the motivation to eat eating with friends make you eat more
two factors that contribute to obesity the parent's weight (genetic), sleep loss
significant obesity increases what types of risks? diabetes, HBP, heart disease, gallstones, arthritis
Created by: allyson.lee
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