Thorax - transverse section

You selected: triceps

The triceps muscle is the primary extensor of the elbow. It straightens the arm. The muscle has two heads, one of which inserts on the humerus just below the shoulder joint, and the other of which inserts on the scapula. The two heads can commonly be felt by placing a hand around the back of the arm while holding the elbow in a locked position.

Key points in this image
lungs | ribs | right atrium | left atrium | right ventricle | left ventricle | serratus anterior | latissimus dorsi | erector spinae | pectoralis major |
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Module Name: thorax
Module Title: Thorax - transverse section
Image Info: Gross specimen.
Created by: Lynn Bry
Last modified: Dec 12th, 1996

Created with Annotation 1.0