Think about a time when you were frightened. How did your body react?

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Think about a time when you were frightened. How did your body react?

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The two divisions of the autonomic nervous system; the parasympathetic and the sympathetic division are concerned with different situations. The sympathetic division is known to regulate the ‘fight or flight’ condition; that is, this system prepares your body to deal with fear. When an individual is frightened the sympathetic division gets activated, and it brings about several changes in the body; the stress hormones (adrenaline and cortisol) are synthesized and released, there is an increase in heart rate and blood pressure, a major portion of the blood is pumped to the muscles of the limbs, and the respiratory rate also increases to meet up the oxygen requirement of the body.

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