Flexor Digiti Minimi Brevis

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The Flexor Digiti Minimi Brevis is a muscle of the hand.

Anatomical Attachments:

• Origin: Attaches to the flexor retinaculum and the hamulus of the hamate bone.
• Insertion: Attaches to the ulnar side and the base of the proximal phalanx of the little finger.

Action: Flexes the little finger.

Synergist: Palmaris brevis, Abductor digiti minimi, and Opponens digiti minimi.

Antagonist: Abductor pollicis brevis, Flexor pollicis brevis, Opponens pollicis, Adductor pollicis.

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Nerve Supply: Ulnar nerve (C8, T1).

Vascular supply: Deep volar branch of the ulnar and the dorsum carpal branch of the ulnar artery.

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