Infraspinatus 3D muscle explained

Details
In human anatomy, the infraspinatus muscle is a thick triangular muscle, which occupies the chief part of the infraspinatous fossa.[1] As one of the four muscles of the rotator cuff, the main function of the infraspinatus is to externally rotate the humerus and stabilize the shoulder joint.
Origin infraspinous fossa of the scapula
Insertion middle facet of greater tubercle of the humerus
Artery suprascapular and circumflex scapular arteries
Nerve suprascapular nerve
Actions External rotation of arm and stabilization of glenohumeral join
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