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Heart and
Circulatory System |
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During a stressful experience, the circulatory system is acted
upon by both the Central Nervous System, and the
Autonomic Nervous System. Both systems flood the circulatory system
with hormones that send signals to the rest of the body, altering the
composition of the blood and raising the blood pressure (Selye 1982). Besides being full of hormones, adrenaline
in the blood increases the blood coagulation mechanism (probably as
a protection against potential injury) (Selye 1982). As mentioned before in the Brain and Spinal Cord section,
the brain is responsible for the strength of one’s heart beat. When the brain interprets a situation as
stressful, the heart rate increases.
After prolonged stress, the heart muscle begins to wear out (Bobrov
1998). This is one way that
stress can effect the development of hypertension and coronary heart
diseases.
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© 1997-1999 Microsoft Corporation.
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