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MindTap Biology, 1 term (6 months)...

14th Edition
Cecie Starr + 3 others
ISBN: 9781305269842

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Chapter
Section
BuyFindarrow_forward

MindTap Biology, 1 term (6 months)...

14th Edition
Cecie Starr + 3 others
ISBN: 9781305269842

Textbook Problem

__________from a motor neuron excites a muscle fiber.

a. ACh

b. GABA

c. calcium

d. phosphate

Summary Introduction

Introduction: In the nervous control of contraction, the primary motor cortex is the portion where most of the voluntary movements take place. The brain receives the signals and they travel to stimulate a motor neuron. A membrane-bound structure called sarcoplasmic reticulum is a specialized smooth endoplasmic reticulum that mainly functions in the regulation of calcium ions that are present in the striated muscle cells.

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