Rotator Cuff Muscles Anatomy

Attachment points and innervation are discussed. The rotator cuff muscles are each used in a variety of upper extremity movements including flexion abduction internal rotation and external rotation.

What Are The Causes Of Rotator Cuff Pathology

The rotator cuff is a group of four muscles that hold your upper arm in place in your shoulder.

Rotator cuff muscles anatomy. The four rotator cuff muscles supraspinatus. In anatomy the rotator cuff is a group of muscles and their tendons that act to stabilize the shoulder and allow for its extensive range of motion. The infraspinatus muscle originates below the spine of the scapula.

Balanced strength and flexibility in each of the four muscles are vital to maintain functioning. These tendons come together to surround the front back and the top of the shoulder socket acting as a cuff to connect your humerus to the rotator cuff muscles. On the anterior side of scapula bone is a single muscle the subscapularis.

They are essential players in almost every type of shoulder movement. This is the main muscle that lets you rotate and extend your shoulder. Each one of these muscles is part of the rotator cuff and plays an important role.

The four muscles are the supraspinatus muscle the infraspinatus muscle teres minor muscle and the subscapularis muscle. The rotator cuff muscles are a group of muscles that originate on the scapula and insert onto the head of the humerus and provide stability across this joint. These tendons are called the subscapularis tendon the supraspinatus tendon the infraspinatus tendon and the teres minor tendon.

It helps you make all the motions of your arm and shoulder. Of the seven scapulohumeral muscles four make up the rotator cuff. Ive just added in the muscles here and well just take a look at the muscles that make up the rotator cuff and a look at their function.

This tutorial introduces the rotator cuff muscles. In the human body the rotator cuff is a functional anatomical unit located in the upper extremity. This is the smallest rotator cuff.

The teres minor muscle originates on the lateral scapula border and. This holds your humerus in place and keeps your upper arm stable. The animations in this video were made using visible body muscle premium 2 and human anatomy.

The head of your upper arm bone also. Its function is related to the glenohumeral joint where the muscles of the cuff function both as the executors of the movements of the joint and the stabilization of the joint as well. The supraspinatus muscle originates above the spine of the scapula and inserts on.

Three of the four rotator cuff muscles are deep to the deltoid and trapezius muscles and cannot be seen unless those muscles are first removed and one is on the anterior side of the scapula bone and cannot be seen from the surface.

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