Chapter 12, Problem 12.1.12AYLO

Summary Introduction

To determine:

The role of the intrinsic muscles of the hand and the three major groups into which it is classified.

The location of the thenar and hypothenar eminences.

Introduction:

In hands both extrinsic and intrinsic muscles are present. The intrinsic muscles are in the hand and the extrinsic muscles are located in the forearm. The extrinsic muscles are located in a round shape in the upper forearm. The tendons of these muscles extend to the wrist and the hand. The functions of these muscles are to flex and extend the wrist and digits, and moreover, make the digits to undergo abduction, adduction, radial, and ulnar flexion.