ROTATOR CUFF ANATOMY

 💥 SHOULDER JOINT SERIES 💥


👉ROTATOR CUFF ANATOMY



🔷 ROTATOR CUFF is made up of muscles and tendons that keep the ball (head) of upper-arm bone (humerus) in shoulder socket. It also helps raise and rotate the arm.


Each one of these muscles is PART of the rotator cuff and plays an IMPORTANT ROLE:


SUPRASPINATUS: This holds humerus in place and keeps the upper arm stable. And helps lift the arm.


INFRASPINATUS: This is the main muscle that lets ROTATION and EXTEND shoulder.


TERES MINOR: This is the smallest rotator cuff muscle. Its main job is to assist with rotation of the arm away from the body.


SUBSCAPULARIS: This holds upper arm bone to the shoulder blade and helps to rotate arm, hold it straight out and lower it.


ROTATOR CUFF is a big part of SHOULDER JOINT. It PROTECTS the joint and let the arms move over head. It’s especially important in SPORTS like baseball, swimming, or tennis.



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