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Coracobrachialis and Biceps (Coracoid Group)
Region: Shoulder & Arm Muscles · All shoulder & arm muscles
Coracobrachialis and Biceps (Coracoid Group) at a glance
| Origin | Coracoid process of the scapula |
|---|---|
| Insertion | Humerus (coracobrachialis) and radius (biceps short head via the common tendon) |
| Actions | Flex the arm at the shoulder |
| Nerve supply | Musculocutaneous nerve (C5–C7) |
◆ Good to know
Three structures share the coracoid tip — coracobrachialis, the short head of biceps and pectoralis minor nearby ('the lighthouse of the axilla' region for finding the axillary vessels).
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.