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Palmaris brevis muscle
The muscles of the left hand. Palmar surface. (Palmaris brevis visible at center left.)
Latin musculus palmaris brevis
Gray's subject #126 463
Origin flexor retinaculum (medial), palmar aponeurosis
Insertion    palm
Nerve superficial branch of ulnar nerve
Actions pulls on skin over hypothenar eminence, deepening the cup of the palm and so improving grip

The Palmaris brevis is a thin, quadrilateral muscle, placed beneath the integument of the ulnar side of the hand.

It arises by tendinous fasciculi from the transverse carpal ligament and palmar aponeurosis; the fleshy fibers are inserted into the skin on the ulnar border of the palm of the hand.

The muscle is innervated by the superficial branch of the ulnar nerve , containing fibers from the eighth cervical and first thoracic nerves.

See also

Additional images

External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.



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