01:146:356 Chapter Notes - Chapter 22: Gastrin, Antibody, Homeothermy
23 Mar 2016
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Chapter 22: metabolism and energy balance: appetite and satiety. Feeding center is tonic control and satiety center stops food intake by inhibiting feeding center destruction of satiety center causes one to constantly eat: brain gut hormones and adipocytokines as well as limbic and cortical sys. Influence glucostatic theory: glucose metabolism by hypothalamic centers regulates food intake lipostatic theory proposes that a signal is sent to hypothalamic centers based on fat stores: energy balance. Work done by body includes transport, mechanical, and chemical (storage and synthesis) Most energy output (except exercise) is not under conscious control. 1 for cab, . 8 of protein, . 7 for fat, . 82 for avg american diet. Fat causes little diet induced thermogenesis but proteins do cause quite a bit: weight training increases lean muscle mass which increases energy consumption and decreases fat storage. Fats are harder to access and their metabolism is slower than that of carbs/protein o: metabolism.
