Anatomy Rotator Cuff Muscles

Laterally rotates the arm. 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.

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The supraspinatus muscle originates above the spine of the scapula and inserts on.

Anatomy rotator cuff muscles. The rotator cuff rc is a common name for the group of 4 distinct muscles and their tendons which provide strength and stability during motion to the shoulder complex. On the anterior side of scapula bone is a single muscle the subscapularis. Originates from the infraspinous fossa of the scapula attaches to the greater tubercle of the humerus.

Of the seven scapulohumeral muscles four make up the rotator cuff. The infraspinatus muscle originates below the spine of the scapula. Rotator cuff muscles attachments.

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 is the smallest rotator cuff. 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.

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. The four rotator cuff muscles supraspinatus. 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 teres minor muscle originates on the lateral scapula border and. In the human body the rotator cuff is a functional anatomical unit located in the upper extremity.

The tendons attach the muscles to the bone and allow movement in the shoulder as well as providing strength to hold the ball in its socket. The rotator cuff muscles are connected individually to a group of flat tendons which fuse together and surround the front the back and the top of the shoulder joint like a cuff on a shirt. This holds your humerus in place and keeps your upper arm stable.

They are also referred to as the sits muscle with reference to the first letter of their names supraspinatus infraspinatusteres minor and subscapularis respectfully. The four muscles are the supraspinatus muscle the infraspinatus muscle teres minor muscle and the subscapularis muscle. 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.

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