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module 53
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| Question | Answer |
|---|---|
| glucose | the form of sugar that circulates in the blood and provides the major source of energy for body tissues. When its level is low, we feel hunger. |
| set point | the point at which your “weight thermostat” may be set. When your body falls below this weight, increased hunger and a lowered metabolic rate may combine to restore lost weight. |
| basal metabolic rate | the body’s resting rate of energy output. |
| Insulin | Hormone secreted by pancreas; controls blood glucose |
| Ghrelin | Hormone secreted by empty stomach; sends "Im hungry" signal to the brain |
| Orexin | Hunger-triggering hormone secreted by hypothalamus |
| Leptin | Protein hormone secreted by fat cells; when abundant, causes brain to increase metabolism and decrease hunger |
| PYY | Digestive tract hormone; sends "i'm not hungry" signals to the brain |