Muscles of the Glenohumeral Joint : Origin, Action and Insertion
Infraspinatus Origin
Infraspinous fossa of the scapula
Deltoid Action
Abduction, Adduction Flexion, and Extension
Supraspinatus Action
Abduction, some External Rotation
Deltoid Origin
Anterior Aspect of the Clavicle Spine of the scapula
Latissimus Dorsi Insertion
Anterior aspect of the intertubicular groove
Pectoralis Major Origin
Anterior portion of the clavicle and sternum Ribs 2-6
Coracobrachialis Origin
Coracoid process of the scapula
Deltoid Insertion
Deltoid Tuberosity of the humerus
Infraspinatus Action
External Rotation and Extension
Teres Minor Action
External Rotation and Extension
Coracobrachialis Action
Flexion and Some adduction
Teres Minor Insertion
Greater Tuberosity of the Humerus
Supraspinatus Insertion
Greater Tuberosity of the humerus
Infraspinatus Insertion
Greater tuberosity of the humerus
Latissimus Dorsi Action
Internal Rotation Extension and Adduction
Subscapularis Action
Internal Rotation and Flexion
Teres Major Action
Internal Rotation, Extension and Adduction
Pectoralis Major Action
Internal Rotation, Flexion and Adduction
Teres Minor Origin
Lateral Border of the Scapula
Subscapularis Insertion
Lesser tuberosity of the humerus
Teres Major Insertion
Lesser tuberosity of the humerus
Teres Major Origin
Lower lateral portion of the lateral border of the scapula
Coracobrachialis Insertion
Medial side of humerus
Biceps Brachii Origin
Short Head - Coracoid Process Long Head - Supraglenoid tubercle
Biceps Brachii Action
Shoulder Flexion, Elbow Flexion and Supination
Latissimus Dorsi Origin
Spinous processes of the lower six throacic All five lumbar vertebrae lower three ribs ilium
Subscapularis Origin
Subscapular fossa of the scapula
What four muscles is the rotator cuff composed of?
Supraspinatus, Infraspinatus, Teres Minor and Subscapularis
Supraspinatus Origin
Supraspinous Fossa of Scapula
Pectoralis Major Insertion
Surgical neck distal to greater Tuberosity
Biceps Brachii Insertion
Tuberosity of the radius