PSY 308 Chapter Notes - Chapter 10: Neuropeptide, Endoplasmic Reticulum, Intellectual Disability
Document Summary
Biologically, the necessary condition for life is a coordinated set of chemical reactions. Module 10. 1: temperature regulation: temperature affects behavior in many ways. If the air is hot and humid, the moisture does not evaporate. In most male mammals, the scrotum hangs outside the body: pregnant women are advised to avoid hot baths. Module 10. 2: thirst: the concentration of chemicals in water determines the rate of all chemical reactions in the body, so water must be regulated within narrow limits. If we cannot find enough sufficient water to drink: excrete more concentrated urine, decrease sweat, posterior pituitary releases vasopressin that raises blood pressure by constricting blood vessels. In most cases, we drink more than we need and excrete the excess. Oral factors: untasted, unchewed meals are unsatisfying. Insulin enables glucose to enter the cells, except for brain cells, where glucose does not need insulin to enter: when insulin levels are high, glucose enters cells easily.
