BIOD 121 (Portage) Nutrition Module 1 Exam Study Guide.
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Course
BIOD 121
Institution
BIOD 121
BIOD 121 (Portage) Nutrition Module 1
Exam Study Guide.
Nutrition - answerThe science that links foods to health and disease.
Five dimensions of health - answerPhysical
Intellectual
Emotional
Social
Spiritual
Physical Health - answerThe body's ability to perform daily functions for survival...
Appetite - answer✔External drive (but internal force)
Pleasant sensation with food
Leads to eat if not hungry
Satiety - answer✔The feeling of being full.
Hypothalamus - answer✔Area of the brain which plays a role in hunger and satiety.
Hypothalamus process - answer✔When not eaten, nutrient concentration in blood drops.
Drop stimulates feeding center in hypothalamus.
Stimulates to eat., and nutrients in blood rise.
Satiety center is activated, and eating ceases.
GI tract - answer✔Main site in body for digestion and absorption of nutrients.
GI tract organs - answer✔Mouth, esophagus, stomach, small intestine, large intestine, rectum,
and anus.
Stomach - answer✔Organ plays a major role in satiety and weight regulation.
Hormones - answer✔Compounds secreted into bloodstream by one type of cell that acts to
control the function of another type of cell.
Hormones that increase hunger - answer✔Ghrelin, endorphins, neuropeptide-y
Hormones that decrease hunger - answer✔Leptin, serotonin, cholecystokinin (CCK)
Leptin - answer✔Alerts brain to turn off hunger center and activate satiety center.
Produced in adipose cells - answer✔Leptin
Ghrelin - answer✔Traveling to brain, stimulates hunger center and deactivates satiety center.
Produced by the stomach - answer✔Ghrelin
External forces - answer✔Sensory
Cognitive
Environmental
Health Status
Sensory Forces - answer✔Flavor, texture, appearance, taste, and smell.
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