fight or flight response

Question 1

what is it

Answer 1

an evolutionary survival mechanism in response to a threat. primes the body and mind for extreme action. body returns to homeostasis after its passed

Question 2

how it happens stage 1

Answer 2

1. stressor detected by hypothalamus

Question 3

stage 2

Answer 3

2. HPA axis in endocrine system activated

Question 4

stage 3

Answer 4

3. pituarity gland releases hormone ACTH detected by adrenal cortex releasing cortisol

Question 5

stage 4

Answer 5

hypothalamus also activates the sympathetic branch of the ans

Question 6

stage 5

Answer 6

and the adrenal medula is triggered via the Sympathetic Adrenomedullary Patheway releasing adrenaline

Question 7

role of adrenaline (psych)

Answer 7

psych effects of adrenaline include increase alertness anxiety and attention

Question 8

role of adrenaline (physical)

Answer 8

increase blood flow to brain and skeletal muscles (quick reaction)
decreased blood flow to skin and immune systems
dilated pupils (improved vision)
faster breathing rate (more oxygen)

Question 9

not designed for modern world

Answer 9

it’s maladaptive in most situations as it’s trigged by stimuli that can’t run away or be fought (eg: exams)

Question 10

what does it cause

Answer 10

acute stress

Question 11

long term cause

Answer 11

chronic stress
stress related illness impacting immune and circ systems