Summary PATHO 370 Midterm Exam Preparation - Summarized brief

PATHO 370 Midterm Exam Preparation - Summarized brief - Chapter 2 Homeostasis and Adaptive Responses to Stressors Homeostasis- state of equilibrium Allostasis- Ability to successfully adapt to changes Stress: a state manifested by a specific syndrome of the body developed in response to any stimuli that made an intense demand on it. Influenced by genetics, socioeconomic status, prior susceptibilities, pre-existing health status, allostatic state and ability to manage stress General Adaptation Syndrome (GAS): Involves 3 STAGES: • Alarm stage: stimulation of the SNS, resulting in release of catecholamines & cortisol • Resistance stage: body selects the most effective and economic channels of defense; cortisol levels present in first stage drop b/c they are no longer needed • Exhaustion stage: resources are depleted & signs of “wear & tear” or systemic damage appear Acute versus Chronic Stress: • Acute stress: associated with the ANS