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 8 - Section 8.3 - Study Guide - Assess Your Learning Outcomes - Page 271: 1

Answer

In an adult there are 33 vertebrae. However, the five sacral vertebrae are fused , and the four sacral vertebrae are also usually fused

Work Step by Step

There is no intervertebral disc between the atlas and the axis vertebrae. Therefore in the adult there are 23 intervertebral discs.
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