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module 53
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Question | Answer |
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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 |