HLTH 230 Study Guide - White Adipose Tissue, Brown Adipose Tissue, Ghrelin

• School: Queen's University
• Department: Health Studies
• Course: HLTH 230
• Professor: Jeffery Lalonde

Document Summary

Leptin less decreases appetite: decreases appetite, increases energy expenditure. Promotes negative energy balance calories you take in is less than the calories expended. Burn more than you are taking in. Ghrelin grow more appetite: produced by the stomach cells that enhances appetite, decreases energy expenditure. Acts as a hormone in the hypothalamus. Stimulates appetite and promotes efficient energy storage. Triggers desire to eat: ghrelin rises before meals and falls after a meal, ghrelin fights to maintain a stable body weight. Why it is difficult to keep off weight that has been lost. When you lose weight, body wants to maintain original weight. Prader willi syndrome: genetic disorder characterized by excessive appetite, massive obesity, short stature. 2 types of fat: white fat. Stores fat for other cells to use for energy: brown fat. When fat is oxidized, some energy is released in heat. In brown fat, heat is produced instead of. Important for new borns, freezing climate, hibernating animals.