bodily response to stress revision

made with the flanagan as psyc book as well as sheets from class

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Psychology re-sitbodily response to stressstress
To see a situation as stressful requires the
perception of the situation and then evaluation of
situation using previous memories. Stress
particularly occurs when a demand on a person
exceeds their perceived ability to cope. This view of
stress activates the hypothalamus and the body's
response is started. When stress is perceived it
activates either the HPA axis or the SAM pathway
which leads to a flood of hormones into the blood
Sympathetic adrenomedullary pathway (SAM) ­ acute stressor or
immediate stressor
Immediate/acute stressors arouse the autonomic
nervous system (ANS). Specifically the sympathetic
nervous system (SNS) this controls our internal
organs and glands, heart, digestive and circulatory
system. The SNS prepares an animal for the fight or
flight response. One pathway of the SNS runs to the
adrenal medulla. When SNS is activated it
stimulates the adrenal medulla to release two
hormones called adrenalin and noradrenalin into
the blood stream. When these enter the
blood stream they have many effects on
the body physiological systems e.g.
boosting oxygen, glucose for the brain and
muscles. It also suppresses all
bodily process such
as digestion.

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Psychology re-sitbodily response to stressstress
Hypothalamic-pituitary-adrenal axis (HPA axis)-chronic or long term
This is for long term stressors as the human body
cannot keep up the flight or fight response for a
long time there is a separate reaction. For long
term stress the hypothalamus is activated and
then stimulates the pituarty gland this than
release a hormone called adrenocorticotrophic
hormone (ACTH). This ACTH then travels to the
adrenal cortex which stimulates the release of
corticosteroids (cortisol and corticosterone) in
to the blood stream.…read more

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Psychology re-sitbodily response to stressstress
General Adaptation Syndrome (GAS) by Selye
Seyle found when experimenting on rats no matter what he did to them
(cold,excerise,surgery) they presented the same symptoms when the
experiments were different. This led to the conclusion that it weren't the
experiments but due to the stress they caused.…read more

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Psychology re-sitbodily response to stressstress…read more


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