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

14th Edition
Cecie Starr + 3 others
ISBN: 9781305269842

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Section
BuyFindarrow_forward

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

14th Edition
Cecie Starr + 3 others
ISBN: 9781305269842

Textbook Problem

A motor unit is _________.

  1. a. a muscle and the bone it moves
  2. b. two muscles that work in opposition
  3. c. the amount a muscle shortens during contraction
  4. d. a motor neuron and the muscle fibers it controls

Summary Introduction

Introduction: 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. The GABA (Gamma-Aminobutyric Acid) is a neurotransmitter that functions to inhibit the signals from the motor neurons.

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