Homeostasis Flashcards
Purpose of homeostasis
Adaptation to stress and state of homeostasis
Homeostasis
State of equilibrium or tendency towards that state
Stress
Experience a person is exposed to, through a stimulus or stressor
Appraisal
Perception of the stressor by a person expressing stress
Stressors
Disruptive forces
Medulla
Controls vital functions - heart rate / blood pressure
Reticular formation helps with
Arousal
Pituitary gland
Influenced by hypothalamus
- produces hormones for adaptation to stress and secrete hormones
Frontal cortex helps with
Interpreting threat level
Hypothalamus
Secretes endorphins during stress
Pituitary gland
In brain
- makes antidiuretic hormone that stimulates more hormones or stimulates a hormone
Adrenal cortex
Found in kidneys
Stimulates cortisol - stress hormone
General adaptation syndrome (gas)
Alarm reaction
Resistance
Recovery or exhaustion
Alarm reaction
Hypothalamus releases endorphins
- increasing blood volume / blood glucose
Resistance stage
Body stabilize
- responds in opposite manner allowing hormones and cardiac output to return to normal state