BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 32, Problem 12SA
Summary Introduction

Introduction:

A muscle contraction is initiated by motor signaling pathway. The arrival of the stimulus causes the activation of primary motor cortex in the brain. The motor cortex sends a signal to the brainstem and spinal cord. The activation of motor neurons by the spinal cord initiates the process of muscle contraction.

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