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Upper Extremity Muscles > Hypothenar > Flashcards

Hypothenar Flashcards

1
Q

Flexor Digiti Minimi

A

Origin: flexor retinaculum and hook of hamate

Insertion: medial side of proximal phalanx of little finger

Innervation: deep branch of ulnar nerve

Blood Supply: deep palmar branch of ulnar artery

Action: flexes proximal phalanx of little finger

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2
Q

Abductor Digiti Minimi

A

Origin: pisiform and tendon of flexor carpi ulnaris

Insertion: medial side of base of proximal phalanx of little finger

Innervation: deep branch of ulnar nerve

Blood Supply: deep palmar branch of ulnar artery

Action: abducts little finger

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3
Q

Opponens Digiti Minimi

A

Origin: flexor retinaculum and hook of hamate

Insertion: palmar surface of 5th metacarpal

Innervation: deep branch of ulnar nerve

Blood Supply: deep palmar branch of ulnar artery

Action: draws 5th metacarpal anteriorly and rotates it to face thumb

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Upper Extremity Muscles (8 decks)

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