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Supraspinatus
Region: Shoulder & Arm Muscles · All shoulder & arm muscles
Supraspinatus at a glance
| Origin | Supraspinous fossa of the scapula |
|---|---|
| Insertion | Top facet of the greater tubercle of the humerus |
| Actions | Starts arm abduction (first ~15 degrees); Stabilises the head of the humerus in the socket |
| Nerve supply | Suprascapular nerve (C5–C6) |
◆ Good to know
The most commonly torn rotator cuff tendon; pain in the mid-range of abduction ('painful arc') is its classic sign.
More Shoulder & Arm Muscles
Please note: This page is an anatomy education summary for students and curious readers, not medical advice. Attachment points are given in their classic short form; individual anatomy varies, and detailed dissection-level descriptions belong in an anatomy atlas.