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 24 - The Digestive System - Figure 24.10 - Page 901: 1

Answer

Swallowing is both voluntary and involuntary.

Work Step by Step

Swallowing is initiated as a voluntary action by skeletal muscles. A bolus of food is carried down the esophagus by peristalsis, which comprises waves of involuntary contractions by smooth muscles.
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