Biology: How Life Works
Biology: How Life Works
3rd Edition
ISBN: 9781319017637
Author: James Morris, Daniel Hartl, Andrew Knoll, Melissa Michael, Robert Lue, Andrew Berry, Andrew Biewener, Brian Farrell, N. Michele Holbrook
Publisher: Macmillan Higher Education
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Chapter 34.4, Problem 12SAQ
Summary Introduction

To determine:

That why an interneuron is needed to provide reciprocal inhibition of the flexor muscle when an extensor muscle is activated.

Introduction:

Flexor and extensor are skeletal muscles whose functions are associated with the joint movement. These two muscles are alternatively activated and relaxed at different times which allow the contraction or activation of one while other is relaxed or inhibited. This pattern of joint movement is done by reciprocal inhibition.

Reciprocal inhibition is a process by which the activation of opposing set of muscles takes place. Due to which one set of muscle is inhibited while other is activated that allows the movement of joints.

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GCSE PE - ANTAGONISTIC MUSCLE ACTION - Anatomy and Physiology (Skeletal and Muscular System - 1.5); Author: igpe_complete;https://www.youtube.com/watch?v=6hm_9jQRoO4;License: Standard Youtube License