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Slide 1

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Stress Revision…read more

Slide 2

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· Stress ­ when a person sees the demands of a
situation to be greater than the ability to cope
· Stressor ­ the source of stress
· Acute ­ short lived & intense
· Chronic ­ long term & on-going
· Fight or flight ­ gears up the body to respond
most effectively…read more

Slide 3

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Acute stress
· Arouses autonomic nervous system
· ANS has 2 branches:
­ Sympathetic nervous system: causes arousal for
fight or flight
­ Parasympathetic branch: returns body to
relaxation…read more

Slide 4

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Acute stress
· When exposed to an acute stressor the SNS is
· At the same time the sympathetic adrenal
medullary system SAM is activated
· This makes up the sympathomedullary
pathway…read more

Slide 5

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Sympathomedullary Pathway
· Hypothalamus stimulates adrenal medulla.
This releases adrenaline and noradrenaline.
This gets the body ready for fight or flight. This
makes physiological changes occur e.g.
increased heart rate/high blood pressure.…read more

Slide 6

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Chronic Stress: Pituitary Adrenal
· Hypothalamus stimulates the pituitary gland
to release the adrenocorticotrophic hormone.
This stimulates the adrenal cortex which
releases cortisol into the blood. This causes
physiological changes e.g. lowered pain
sensitivity/high blood pressure…read more

Slide 7

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Slide 8

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Slide 9

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Slide 10

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Really helpful thanks

Billie Cook


I'm glad it was helpful for you :)

Aiste - Team GR


This is absolutely prefect, thank you very much :)

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