Term
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Definition
Origin:Supraspinous fossa of scapula, and supraspinous fascia
Insertion: Greater tubercle of humerus and articular capsule of shoulder joint
Function: Abduction of shoulder, downward pull of a loaded arm |
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Term
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Definition
Origin: Medial part of infraspinous fossa, and tendinous septa
Insertion: Middle aspect of greater tubercle
Function: lateral rotation of shoulder |
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Term
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Definition
Origin: Dorsal surface of the upper lateral margin of the scapula.
Insertion: Tubercle of humerus and to humeral shaft. Articular capsule of shoulder joint
Function: Lateral rotation of shoulder |
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Term
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Definition
Origin: Subscapular fossa and tendinous intermuscular septa
Insertion: Lesser tubercle of humerus, articular capsule of the shoulder joint
Function: medial rotation of the shoulder |
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Term
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Definition
Origin: clavicle, acromion, spine of scapula,
Insertion: Deltoid tuberosity of humerus and brachial fascia
Function: Flexion and weak medial rotation of the shoulder, abduction, extension and weak lateral rotation |
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Term
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Definition
Origin: clavicle, acromion, spine of scapula,
Insertion: Deltoid tuberosity of humerus and brachial fascia
Function: Flexion and weak medial rotation of the shoulder, abduction, extension and weak lateral rotation |
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Term
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Definition
Origin: Lateral ridge intertubercular groove.
Insertion:Adduction , medial rotation, flexion of extended shoulder. |
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Term
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Definition
Origin: inferior angle of scapula,
Insertion:intertubercular groove.
Function: Adduction, medial rotation, extension of flexed shoulder |
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Term
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Definition
Origin:Spinous process from 7th to 12th thoracic vertebrae, spinous process of lumbar and sacral vertebrae, iliac crest.
Insertion: intertubercular groove.
Function: adduction, medial rotation, extension of flexed shoulder. |
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