Anatomy
Origin:
Flexor retinaculum and palmar aponeurosis.
Insertion:
Dermis of the ulnar border of the hand.
Functions
Wrinkles skin of ulnar palm to support grip.
Supply
Nerve Supply:
Superficial branch of ulnar nerve (C8, T1).
Blood Supply:
Superficial palmar arch.
Clinical
Bunching of the skin over ulnar area of the palm may be an early sign of recovery from an ulnar nerve lesion.
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