Chapter 14, Problem 21MF

Summary Introduction

To identify: The muscle that performs each function.

Introduction: The muscles that move the arms originate in the posterior or anterior part of the trunk and insert on to the humerus. The contraction of these muscles extends or flexes the forearm at the joints of the elbow. The muscles in the anterior and posterior compartments of the arm include the biceps brachii, brachialis, and triceps brachii.