Essentials of Human Anatomy & Physiology (12th Edition)

Published by Pearson
ISBN 10: 1292216239
ISBN 13: 978-1-29221-623-2

Chapter 4 - Skin and Body Membranes - Review Questions - Page 158: 24

Answer

Cyanosis refers to a bluish-purple hue to the skin.

Work Step by Step

Cyanosis refers to a bluish-purple hue to the skin. It is most easily seen where the skin is thin, such as the lips, mouth, earlobes, and fingernails. Cyanosis indicates there may be decreased oxygen attached to red blood cells in the bloodstream. It may suggest a problem with the lungs or heart.
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