Posterior Arm Muscle Labeled
The forearm is the portion of the arm distal to the elbow and proximal to the wrist.
Posterior arm muscle labeled. The posterior compartment is located behind the humerus and consists of two muscles. Commonly known as the bicep muscle this muscle rests on top of the humerus bone. Now lets get granular with the individual muscles of the arms. There are 20 muscles separated into two compartments.
Short muscle reinforcing the action of the triceps. The anconeus is not physically located in the arm but it is very closely related to the triceps in terms of function. Here we will discuss the posterior compartment of the forearm in the setting of their attachment points function innervation and vascular supply. For more anatomy content please follow us and visit our website.
It allows the forearm to extend on the arm and also stabilizes the elbow joint. This muscle usually referred to as your triceps runs along your humerus and allows for the. Posterior arm muscles on the back of your arm are the extensor muscles which perform the opposite function. Long radial extensor of wrist muscle enabling the hand to extend and to draw away from the median axis of the body.
We are pleased to provide you with the picture named posterior muscles of the upper armwe hope this picture posterior muscles of the upper arm can help you study and research. There are generally twelve muscles in the posterior compartment of the forearm which can be further divided into a superficial intermediate and deep layer. It rotates the forearm and also flexes the elbow. The triceps brachii is mainly involved in forearm extension making it an extensor muscle.
It is located in the posterior or extensor compartment of the arm. This muscle helps rotate the upper arm. Most of the muscles in the superficial and the intermediate layers share a common origin which is the outer part of the elbow the lateral epicondyle of humerus. The posterior compartment is located behind your humerus and consists of two muscles.
In this article we shall look at the anatomy of the muscles of the upper arm their attachments innervation and actions. So the triceps extend straighten the elbow and the forearm extensors extend the wrist and fingers. In addition well also be providing clinical examples to reinforce this information.