PS263 Chapter Notes -Ventromedial Nucleus Of The Hypothalamus, Adipose Tissue, Lateral Hypothalamus
Document Summary
Average american consumes 3,800 calories a day (2x the daily requirement) Many people believe that hunger & eating are normally triggered when the body"s energy resources fall below a prescribed optimal level or, set point. Purpose of hunger = increase the probability of eating, the primary purpose of eating = supply the body with molecular building blocks & energy to live. Digestion: gastrointestinal process of breaking down food & absorbing its constituents into the body (7 steps of digestion; page 300) food has not been consumed until it has been digested; broken down and absorbed. Energy is delivered to the body in 3 forms: 1) lipids (fats), 2) amino acids (breakdown products of proteins), 3) glucose (simple sugar that is the breakdown product of complex carbs; sugars & starches) In cephalic it lowers levels of blood borne fuels (glucose) anticipating influx. In absorptive is minimizes the increasing levels by utilizing & storing them.
