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psych U8M38
hunger motivation
| Question | Answer |
|---|---|
| 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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