PSYC 370 Chapter Notes - Chapter 12: Bulimia Nervosa, Ob River, Basal Metabolic Rate
9 May 2013
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Digestion: the process by which food is broken down and absorbed through the lining of the gastrointestinal tract. Energy is delivered to the body in three forms: lipids, amino acids, and glucose. Energy is stored in the body in three forms: fats, glycogen, and proteins ; most of the bodies energy reserve is stored as fats. Function of insulin during cephalic phase lower levels of bloodborne fuels, primarily glucose, in anticipation of the impending influx. Function of insulin during absorptive phase minimize the increasing levels of bloodborne fuels by utilizing and storing them. Fasting phase is characterized by high blood levels of glucagon and low levels of insulin. Glucagon: a pancreatic hormone that promotes the release of free fatty acids from adipose tissue, their conversion to ketones, and the use of both as sources of energy. High levels of fasting-phase glucagon promote the release of free fatty acids (main source of energy during fasting phase) from adipose tissue.
