PSY 1102 Chapter Notes - Chapter 4: Natural Killer Cell, Adrenal Medulla, Adrenal Cortex

• School: University of Ottawa
• Department: Psychology
• Course: PSY 1102
• Professor: Najwa Haddad

Document Summary

A. 1. the study of psychological factors effecting psychology: stress and stressors. We get stress because we perceive a situation to be threatening, taxing, or beyond our abilities. When we are stressed, psychological changes take place in our bodies. Body does it"s best to resist the situation. > we are vulnerable to diseases like cancer, heart disease, and even death. Better predictors of health than significant life changes. # having to make a decision between 2 or more options. Healthy perceived control is important for both physical and mental health. Protects us from stress: stress and susceptibility to disease. The immune system protects us from foreign and internal agents. Either kill the agent or take it to other cells to be destroyed. # grow in bone marrow but mature in the thymus. # go after infected cells and cancer cells. Regulate and enhance the functionality of the immune system. Stress hormones divert energy to the sympathetic nervous system.