Palmaris brevis muscle
Musculus palmaris brevis
- Related terms: Palmaris brevis
Definition
Origin: Flexor retinaculum (medial), palmar aponeurosis
Insertion: Palm
Nerve: Superficial branch of ulnar nerve
Action: Wrinkle skin of palm
Description:
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.
This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from http://www.bartleby.com/107/).
