Deltoid Deltoid is a triangular muscle that works closely with the rotator cuff muscles to lift the humeral shaft superiorly. It is also key in preventing dislocation of the humerus when lifting heavy loads. AllContinue reading
Tag: oitf-scapulohumeral
Coracobrachialis – Functional Anatomy
Coracobrachialis Origin – coracoid process of the scapula Insertion – medial surface near the middle of shaft of the humerus Function – flexes and adducts the humerus with some medial rotation of the humerus Continue reading
Teres Major – Functional Anatomy
Teres Major Teres major works closely with latissimus dorsi in adducting and extending the humerus. The lateral portion of latissimus dorsi usually twists around teres major and lives in the same fascial sheath. Latissimus, in a minority ofContinue reading
Rotator Cuff Muscles – Functional Anatomy
Rotator Cuff Muscles Origin – scapula Insertion – head of the humerus Function – Stabilize, rotate and adduct the humerus Related sections of the website: Wikipedia entry for rotator cuff muscles. Tony Preston has aContinue reading
Infraspinatus – Functional Anatomy
Infraspinatus Origin: infraspinous fossa Insertion: posterior greater tubercle of the humerus Function: stabilize the humeral head, externally rotate humerus Wikipedia entry for infraspinatus. Tony Preston has a practice in Atlanta, Georgia where he sees clients. HeContinue reading
Subscapularis – Functional Anatomy
Subscapularis The subscapularis muscle is thick with multiple bellies on the underside of the scapula. Its tendon is separated from the joint capsule by a bursa. It can be a key player in frozen shoulderContinue reading
Teres Minor – Functional Anatomy
Teres minor is a rotator cuff muscle that extends along the back of the axilla. Origin – lateral border of the posterior scapular surface Insertion – Lower posterior greater tubercle of the humerus Function –Continue reading
Supraspinatus – Functional Anatomy
Supraspinatus Supraspinatus is a rotator cuff muscle located on the superior aspect of the scapula. Origin: Supraspinous fossa Insertion: greater tubercle of the humerus Function: abduction of the humerus. Details vary from one study toContinue reading
Trigger Points – Pain when pitching or reaching behind your body
Client Description People complain of pain in the front of the shoulder, back of the upper arm, forearm, and hand. The primary complaint is in the shoulder, especially when reaching behind the back to fasten aContinue reading
Trigger Points – Spot of pain behind shoulder
Client’s Description People complain of a spot of pain deep in the back of the shoulder. It often occurs after other shoulder pain, particularly after this trigger point, has been treated and released. It is aContinue reading