SFCC/PTA/KINES PACKAGE
SFCC/PTA/KINES PACKAGE
6th Edition
ISBN: 9781719661201
Author: Lippert
Publisher: DAVIS FA
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Chapter 16, Problem 7GAQ
Summary Introduction

To determine: The reason for which, in the back, both the left and right external intercostal muscles have the opposite line of pull.

Introduction: The intercostal muscles are located between the ribs and move perpendicularly to each other. The external intercostal muscles are the most superficial muscles, which run medially and inferiorly from the above rib to the below rib. The internal intercostal muscle fibers lie deep and run perpendicularly to the external intercostal muscles, and do the opposite function.

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