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BIOPSYCHOLOGY- fight or flight - Coggle Diagram
BIOPSYCHOLOGY- fight or flight
what is it?
evolutionary survival mechanism in response to a threat
primes the body and mind for extreme action, fighting for our life or escaping the threat
body returns to homeostasis after threat has passed
not designed for the modern world and is maladaptive in most situations
acute stress
common form of stress in response to immediate pressures. can be exciting in small amounts and give focus and energy but it can be exhausting if maintained
chronic stress
long term form of stress in response to prolongued emotional pressure. often occurs in situations where the individual feels lack of control
the process of fight or flight
recignise the threat
hypothalamus activates sympathetic and endocrine system as part of the autonomic nervous system
endocrine system
adrenal gland is made of adrenal medula and adrenal cortex.
HPA (hypothalamus, pituitary, adrenal) axis activates
hypothalamus stimulates pituitary gland to release ACTH which results in the release of cortisol from the adrenal cortex
autonomic nervous system
SAM pathway (sympathetic adrenomedullary pathway). causes adrenal medulla to release adrenaline and noradrenaline
the rold of adrenaline and noradrenaline
increases blood flow to brain and ekeletel muscles
decreases blood flow to non-important systems that arent time critical like the kin and digestive system.
dilates pupils for better vision and faster breathing rate for increased o2 in the blood. increased sweat to remove heat
psychological effects of increased anxiety, attention and alertness
stress related illness
constant triggering of f/f response in chronic stress has long term negative impacts on mental and physical health
shuts down immune system and digestive system which causes high BP and results in anxiety
increased risk of heart disease, obesity and IBS. general lowing of resistance to disease which can result in depression