food Ans- provides calories for energy
nutrients Ans- (1) promote growth and development;
(2) maintain tissue, cells, and bone;
(3) fuel the body for physical and metabolic work;
(4) regulate body processes
over 45 essential nutrients
hunger Ans- internal drive/sensation - growling, pain
appetite Ans- external drive to eat - pleasant feeling, eat when not hungry
role of hypothalamus in hunger Ans- detects drop in nutrients in circulation - hunger center
rise - satiety center
monitors hormonal signals and nervous system from entire body
GI tract Ans- mouth, esophagus, stomach, small intestine, large intestine, rectum, and anus
hormones that increase hunger Ans- Ghrelin, Neuropeptide Y (NPY), Endorphins
hormones that decrease hunger Ans- Leptin, serotonin, cholecystokinin (CCK)
four external forces for eating habits Ans- sensory
cognitive
environment
health status