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Palmar Interossei (Hand)
Region: Forearm & Hand Muscles · All forearm & hand muscles
Palmar Interossei (Hand) at a glance
| Origin | Sides of the first, second, fourth and fifth metacarpals |
|---|---|
| Insertion | Extensor expansions and bases of the proximal phalanges |
| Actions | Bring the fingers together toward the middle finger (adduction) — 'PAD' |
| Nerve supply | Ulnar nerve, deep branch (C8–T1) |
◆ Good to know
Remembered with the dorsal group by 'PAD and DAB': Palmar interossei ADduct, Dorsal interossei ABduct.
More Forearm & Hand 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.