Hand (Hypothenar) Flashcards by Winna Wijaya | Brainscape

Q

Abductor Digiti Minimi

A

Origin: Pisiform, pisohamate ligament, FCU

Insertion: Proximal phalanx of 5th digit

Action: 5th finger abduction @ MCP

Innervation: Ulnar nerve - deep branch (C8, T1)

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Q

Flexor Digiti Minimi

A

Origin: Flexor retinaculum and hook of hamate bone

Insertion: 5th finger proximal phalanx

Action: 5th finger flexion @ MCP

Innervation: Ulnar nerve - deep branch (C8, T1)

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Q

Opponens Digiti Minimi

A

Origin: Flexor retinaculum and hook of hamate bone

Insertion: 5th metacarpal

Action: Oppose 5th MC (draws 5th metacarpal anteriorly and rotates it to face thumb)

Innervation: Ulnar nerve - deep branch (C8, T1)

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