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Stress Learning Objectives


On completion of this topic you should be familiar with the following.



Stress as a bodily response
· Outline the body's response to stress including the sympathomedullary pathway (SAM), and the
hypothalamic-pituitary-adrenocortical axis (HPA).
· Evaluate the physiological response to stress.
· Critically consider the relationship…

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The Body's Response to Stressors

For details refer to your textbook


Definition of stress




Imagine that you are experiencing a stressful situation, e.g., making a speech in front of a large audience,
taking a driving test, or sitting an examination. What changes happen within your body when you are…

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(HPA) axis (SAM) axis
COUNTERSHOCK RESPONSE

p____________ __________
(the master gland of the
endocrine system), which
causes


_______ to be
released, which acts
on the

The h____________ activates the


SHOCK RESPONSE




s__________ b_______
of the ANS, which causes the
a________ m__________ to
release a_____________ and
n________________


a_________ c_______,
which…

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GAS (GENERAL ADAPTATION SYNDROME
In Selye's experiments stress was inflicted on rats, either by injecting them with hormones or chemicals, making surgical
incisions or exposing them to extreme temperatures.


Alarm
Within six to forty-eight hours of the injury, the rats displayed a rapid decrease in the size of the…

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Stage 1




stage 2

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Stage 3




Sympatho-adrenomedullary pathway (SAM)

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Draw an arrow to join together, in the right order:




Adrenal medulla




Increased heart rate

Respiration

Muscle tension

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Hypothalamic-pituitary-adrenal axis (HPA)




Draw an arrow to join together, in the right order:




Releases stored glucose

Stops bruising

Suppresses immune system




Hypothalamus

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Pituitary gland




The immune system



Complete the following paragraph by filing in the gaps (textbook book p 153)



The immune system is
_____________________________________________________________________________by
foreign agents. It is an __________________________
_______________________________________________ throughout the body that functions to
________________________________________________________________

invading particles. Any agent that _____________________is called an_______________ . Familiar
_______________are bacteria,…

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