Subscapularis muscle

MUSCLE subscapular

SHORT DESCRIPTION

Musculo thick, triangular and wide.

2 bursae are attached to this muscle:

• subcoracoid bag.
• subtendinous bag subscapularis muscle.

These two bags can communicate with each other and with the joint cavity.

There may be a third bag but is inconstant.

OCUPA

• Located above the scapula and shoulder joint.
• It extends from the subscapularis fossa to the upper end of the humerus.

ORIGIN

• Entire length of the front face of the scapula, except near the shoulder joint area.

INSERTION

• superomedial of the lesser tubercle and top of the ridge formed by the tuber.

INNERVATION :  Two or three born nerves of the brachial plexus

FUNCTION

• medial rotation of the arm.

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