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THE STRESS RESPONSE (Physiological responses (Increased heart rate and…
THE STRESS RESPONSE
Physiological responses
Increased heart rate and blood circulation
Dilated pupils
Increased breathing rate
More glucose released
Threatening image is perceived by eyes
Image processed by visual cortex
Visual cortex signals amygdala
Stimulates HPA system
External stimuli triggers response
Fight or flight response
Survival instinct
Intended to be for short term only
Amygdala recognises threat and signals hypothalamus
Hypothalamus
Pituitary Gland
Adrenal Gland
adrenal cortex releases cortisol
maintains metabolism during stress response
adrenal medulla releases adrenaline
two glands located above kidneys
anterior lobe: releases FSH, LH, TSH, growth hormone, prolactin
posterior lobe: releases oxytocin
controls body temperature and daily cycles
controls release of hormones
activates sympathetic nervous system
triggers fight or flight response