Physiology Of Stress

Question 1

What is a stressor

Answer 1

A stimulus which puts a psychological strain on individual

Question 2

Define Alarm stage (selyes General adaption syndrome)

Answer 2

Once stressor is perceived, psychological responses of body are activated, in preparation for flight or fight

Question 3

Describe resistance stage ( selyes General adaption Syndrome)

Answer 3

Point at which the body attempts to adapt to stressful environment, resisting the stressor

Question 4

Describe Exhaustion stage ( Selyes General adaption syndrome)

Answer 4

Adaption to chronic stressor is failing, resources needed to resist have been drained

Question 5

What did selye use to test his research?

Answer 5

Rats, found that their bodies reacted the same way to chronic stressors

Question 6

What does the Hypothalmic pituitary adrenal system do? (HPA)

Answer 6

Controls how the body responds to chronic stressor. Hypothalamus triggers the pituitary gland to release the hormone ACTH, which releases cortisol

Question 7

What does the sympathomedullary pathway do? (SAM)

Answer 7

Controls how body initially responds to acute stressor. Sympathetic nervous system triggers the flight or fight response. Hormones adrenaline and noradrenaline which communicate with organs in body.