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Hypothenar Group
Nerve, blood supply, origin, insertion
Muscles | Origin | Insertion | Blood supply | Innervation |
---|---|---|---|---|
Abductor digiti minimi | Pisiform bone Pisohamate lig | Ulnar side of base of 5th proximal phalanx; Ulnar border of dorsal digital expansion of extensor digiti minimi | Deep br of ulnar a; Br from superficial palmar arch; Palmar digital a for medial border of 5th finger | Deep br of ulnar n C8,T1 |
Flexor digiti minimi brevis | Convex surface of hook of hamate; Palmar surface of flexor retinaculum | Ulnar side of base of 5th proximal pahalnx | Same as abductor digiti minimi | Deep br of ulnar n C8, T1 |
Opponens digiti minimi | Convex surface of hook of hamate; Contiguous portion of flexor retinaculum | Ulnar margin and palmar surfcae of 5th metacarpal | Deep br of ulnar; br from deep palmar arch | Deep br of ulnar n C8,T1 |