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3 Cards in this Set
- Front
- Back
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Energy Expenditure Classification
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1. Adaptive Thermogenesis- brown adipose tissue (vs. white adipose tissue) abundant in skinnier people helps regulate temperature by the brain (sympathetic nervous system). Cold temps- more "on" in fat people.
2. Physical exercise 3. Basal metabolic rate- BMR obligatory 4. (NEAT- non-exercise activity) |
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brown adipose tissue
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1. does not add to weight- completely burned into heat
2. rich in mitochondria 3. hibernating animals, babies. in adults its- spinal column neck area. sympathetic nervous system- adrenaline activates glucose metabolism for heat conversion. |
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How do we defend bodyweight?
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ALL TO HYPOTHALAMUS:
1. LONGTERM SENSING Adipose tissue- leptin hormone 2. Higher brain centers- vision/taste smell 3. SHORTTERM SENSING Ingested nutrients- PYY (calories), ghrelin (hunger)- affects orexigenic peptides, vagus nerve (statiety), glucose (insulin), fat (CCK), carbohydrate (GLP-1) Adiposity, Behavior and Nutrient intputs --> hypothalamus --> autonomic (adaptive thermogenesis) and behavioral outputs. |
