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Module 38: Hunger Motivation

Terms in this set (9)

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.
arcuate nucleus
neural network that has a center that secretes appetite-stimulating hormones
ghrelin
hunger-arousing hormone secreted by an empty stomach
orexin
hunger-triggering hormone secreted by hypothalamus
leptin
protein hormone secreted by fat cells; causes brain to increase metabolism and decrease hunger
PYY
digestive tract hormone; sends "I'm not hungry" signals to the brain
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.
physiology
our body chemistry and hypothalamic activity
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