PSB 3002 Chapter Notes - Chapter 12: Lamina Terminalis, Extracellular Fluid, Angiotensin

• School: University of Florida
• Department: Psychobiology
• Course: PSB 3002
• Professor: Bethany Stennett

Document Summary

Lamina terminalis (median preoptic nucleus) receives osmometric and columetric information. Information reaches the median preoptic nucleus from the sfo: ingestive behavior- eating: some facts about metabolism, 2 phases in metabolism, absorptive phase: glucose, amino acids, fats are received from the intestines. Insulin levels are high and cells metabolize glucose. Glucose is turned into glycogen by the livers andn the muscles. Carbs and amino acids turned into fats and taken to the adipose tissue: fasting phase: pns activity decreases, sns activity increases. Insulin levels fall and glucagon and adrenal catecholamines increase: liver gylogen turned into glucose, triglycerides broken down and turns into glycerol and fatty acids, because insulin is decreased, only cns can use blood glucose. Low levels of glucose and fatty acids cause hunger. Lateral hypothalamus has neurons that helps increase eating and decrease metabolic rate by secreting orexin and mch.