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 13 - Section 13.2 - Figure 13.12 - The Point of Entry of Two Spinal Nerves into the Spinal Cord - Page 488: 2

Answer

Efferent fibers of a spinal nerve arise from the ventral or anterior horn of the spinal cord.

Work Step by Step

They leave the spinal cord in the ventral root. Distal to the spinal cord, the dorsal root fibers and ventral root fibers join to form mixed spinal nerves.
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