Palmaris Brevis - Podcast Version TeachMeAnatomy 0:00 / 0:00 1x 0.25x 0.5x 0.75x 1x 1.25x 1.5x 1.75x 2x The palmaris brevis is an intrinsic muscle of the hand. It is a small, thin muscle, found superficially in the subcutaneous tissue of the hypothenar eminence. Attachments: Originates from the palmar aponeurosis and flexor retinaculum and attaches to the dermis of the skin on the medial margin of the hand. Actions: Wrinkles the skin of the hypothenar eminence and deepens the curvature of the hand, improving grip. Innervation: Ulnar nerve. Blood Supply: Superficial palmar arch Adobe Stock, Licensed to TeachMeSeries Ltd Fig 1Palmaris brevis. Pro Feature - 3D Model You've Discovered a Pro Feature Access our 3D Model Library Explore, cut, dissect, annotate and manipulate our 3D models to visualise anatomy in a dynamic, interactive way. Learn More Pro Feature - Dissection Atlas Prosection of the deeper structures of the hand, demonstrating the palmar interossei. The dorsal interossei are also partially visible. Prosection of the deeper structures of the hand, demonstrating the palmar interossei. The dorsal interossei are also partially visible. You've Discovered a Pro Feature Access our Dissection Image Library Enhance your understanding with high-resolution dissection images showcasing real-life anatomy. Learn More Rate This Article