PSYCH 1XX3 Study Guide - Final Guide: Opioid Receptor, Neuropeptide Y, Adipose Tissue
12 Apr 2016
School
Department
Course
Professor
Document Summary
Introduction to hunger and satiety: past: food sources were scarce and behaviours were motivated by the need to obtain energy and nutrients, present: now food comes cheaply and easily. Unit #2: hunger and satiety: there are many signals and complex interactions between the brain and digestive system that drive your feelings of hunger to consume food and drinks, satiety signals lead you to stop consumption. It is the hypothalamus that regulates hunger and satiety by releasing hormones that control our appetite. Main supply of glycogen is in the liver and muscles. Hormone insulin is responsible for mediating the balance. Increase in blood sugar pancreatic insulin secretion uptake of glucose by cells (excess stored as adipose) decrease in blood sugar liver converts glycogen to glucose. Insulin is secreted by the pancreas: as the time between meals increase, the level of glycogen reserves in the liver decrease.
