Anatomy & Physiology: The Unity of Form and Function, 7th Edition

Published by McGraw-Hill Education
ISBN 10: 0073403717
ISBN 13: 978-0-07340-371-7

Chapter 10 - Section 10.2 - Study Guide - Assess Your Learning Outcomes - Page 371: 5

Answer

Buccinator ( trumpet) Muscle. This is the main muscle of the cheek. Actions: It has several roles: It directs food between molars Pulls cheek back from between teeth--when mouth is being closed Expels air and liquids

Work Step by Step

Origin: Alveolar processes on lateral sides of mandible and maxilla Insertion: Obiculoris oris muscle, and submucosa of cheeks and lips Innervation: Facial nerve ( CN VII).
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