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. [1] The muscles fibers pass laterally from its origin before coalescing into a tendon of insertion. [citation needed] The tendon intermingles with the glenohumeral (shoulder) joint .. Subscapularis muscle | Radiology Reference Article | Radiopaedia.org. The subscapularis muscle is one of the four muscles that make up the rotator cuff, the others being: supraspinatus, infraspinatus and teres minor. Summary. origin: subscapular fossa of the scapula. insertion: lesser tubercle of the humerus and up to 40% may insert at surgical neck. some fibers also extend to the greater tubercle and bicipital groove. arterial supply: suprascapular, axillary .. Subscapularis - Physiopedia. The subscapularis muscle is a large triangular shaped muscle that originates from the subscapular fossa. The term "subscapularis" means under (sub) the scapula (wingbone). It is part of the four rotator cuff muscles, the other three are the supraspinatus, infraspinatus and teres minor muscles. The subscapularis is the largest and strongest .. Subscapularis muscle - e-Anatomy - IMAIOS. Origin: Subscapular fossa Insertion: Lesser tubercle of humerus Artery: Subscapular artery Nerve: Upper subscapular nerve, lower subscapular nerve(C5, C6) Action: Rotates medially humerus; stabilizes shoulder Antagonist: Infraspinatus and teres minor Description: The Subscapularis is a large triangular muscle which fills the subscapular fossa, and arises from its medial two-thirds and from the .. Lower subscapular nerve - Wikipedia. The lower subscapular nerve contains axons from the ventral rami of the C5 and C6 cervical spinal nerves. [2] [3] It is the third branch of the posterior cord of the brachial plexus. [4] [5] It gives branches to 2 muscles: subscapularis muscle. [2] It usually gives 4 branches to innervate the subscapularis, and can give up to 8 branches.. Upper subscapular nerve - Wikipedia