Biology: The Unity and Diversity of Life (14th Edition)

Published by Brooks/Cole Publishing Co.
ISBN 10: 1305073959
ISBN 13: 978-1-30507-395-1

Chapter 33 - Self-Quiz - Page 578: 8

Answer

a.

Work Step by Step

Substance P is a neuromodulator; it causes the interneurons in the spine to be more likely to send pain signals to the sensory cortex.
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