Palmaris Brevis

Description

Plamaris brevis muscle

Name

• Palmaris Brevis
• Palmaris Brevis Muscle

General

• Small quadrangular muscle found in the hypothenar region of the hand
• Lies over the fascia of the hypothenar eminence, but does not belong to it

Origin

• flexor retinaculum and the palmar aponeurosis

Insertion

• Skin of the medial border of the hand

Actions

• Improves palmer grip
• Pulls the skin over the hypothenar eminence, deepens the palm

Vascular Supply

• Superficial palmar arch

Innervation

• Superficial Branch of the Ulnar Nerve

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Clinical Significance

• Only motor innervation of the superficial branch of the ulnar nerve

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See Also

• Wrist Pain Main
• Hand And Wrist Anatomy
• Physical Exam Wrist

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