PSYCH 1XX3 Chapter Notes - Chapter 3: Taste, Umami, Apatite
11 Apr 2015
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The main reason for hunger = low glucose levels. Glucose= important for bodily functions & the brains preferred energy source. Glycogen= the body stores glucose in the form of glycogen between meals. Glycogen is stored in the muscles and the liver. The liver and the pancreatic hormone insulin regulate glucose-glycogen balance. High levels of npy activity in the hypothalamus are associated with increased apatite and food seeking behaviours- such as heading to the kitchen. If you like carbs at baseline then you have increase carb consumption at baseline. Suggests we are genetically predisposed to like carbs. Cck is a hormone that sends the feeling of fullness following a meal to receptors in the. Long term energy storage= fat: 2x the energy as carbs (1gram= 9 kcal vs. 1 gram= 4 kcal, found in all parts of the body. Fat= adipose tissue: an endocrine organ that secretes a hormone called leptin. Leptin= used for long term energy balance and fat mass.
