Opponens digiti minimi
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(Redirected from Opponens minimi digiti)
| Opponens digiti minimi | |
|---|---|
 | |
| System: | Muscle |
| Function: | Opposition of the little finger |
| Origin: | Flexor retinaculum, hook of hamate |
| Branches: | |
| Insertion: | Medial border of shaft of little metacarpal |
| Arterial supply: | |
| Venous drainage: | |
| Lymphatic drainage: | |
| Innervation: | Deep terminal branch of the ulnar nerve (C8, T1) |
| Vertebral levels: | |
| Search for Opponens digiti minimi in Gray's. | |
Opponens digiti minimi (opponens digiti quinti, opponens quinti digiti, opponens minimi digiti) is a muscle of the hypothenar eminence that opposes the little finger.
Contents |
Shape
Opponens digiti minimi is triangular, and lies beneath palmaris brevis, flexor digiti minimi brevis and abductor digiti minimi.
Actions
Allows opposition of the little finger, by:
- Flexion of the little metacarpal
- Lateral rotation of the little metacarpal
- Flexion of the proximal phalanx of the little finger
Joints Affected
Origin
- Convexity of the hook of hamate
- Flexor retinaculum
Insertion
- Medial side of the little metacarpal
Nerve Supply
Relations
Superficially:
