Principles of Anatomy and Physiology 14e with Atlas of the Skeleton Set (14th Edition)

Published by Wiley
ISBN 10: 1-11877-456-6
ISBN 13: 978-1-11877-456-4

Chapter 15 - The Autonomic Nervous System - Critical Thinking Questions - Page 545: 2

Answer

In her emergency condition, the sympathetic division of Clara's autonomic nervous system has activated her "fight or flight" responses. The signs and symptoms (SS) that she is showing are classical SS of sympathetic stimulation. These include the following: Increase in heart rate and force of cardiac contractions Sweaty palms that indicate increased activity of sweat glands Goose bumps which are produced because of contraction of the arrector pili muscles near the hair follicles of the skin.

Work Step by Step

The secretion of catecholamines (epinephrine and norepinephrine) from the adrenal medulla will prolong and increase the intensity of the expressions of the fight or flight response.
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