Answer
Trabeculae carneae
Work Step by Step
The atrial pectinate muscles more nearly resemble the trabeculae carneae. Both of these muscles exhibit internal ridges that may serve to keep the walls from clinging to each other during contraction.
Anatomy & Physiology: The Unity of Form and Function, 7th Edition
by Saladin, Kenneth
Published by
McGraw-Hill Education
ISBN 10:
0073403717
ISBN 13:
978-0-07340-371-7
Chapter 19 - Section 19.2 - Figure 19.7 - Internal Anatomy of the Heart - Page 715: 1
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