Flexor Carpi Ulnaris - Podcast Version 0:00 / 0:00 1x 0.25x 0.5x 0.75x 1x 1.25x 1.5x 1.75x 2x The flexor carpi ulnaris is a muscle within the superficial compartment of the anterior forearm. Attachments: Originates from the medial epicondyle of the humerus and the olecranon of the ulna. Attaches to the pisiform bone, hook of hamate, and base of the 5th metacarpal. Actions: Flexion and adduction at the wrist. Innervation: Ulnar nerve. Blood supply: Ulnar artery and posterior ulnar recurrent artery By TeachMeSeries Ltd (2026) Fig 1The superficial muscles of the anterior forearm. 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 Prosetion of the superficial compartment of the anterior forearm Prosetion of the superficial compartment of the anterior forearm 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 Frequent questions What is the flexor carpi ulnaris? The flexor carpi ulnaris is a muscle located in the superficial layer of the anterior forearm that plays a crucial role in wrist movement. Where does the flexor carpi ulnaris originate and insert? This muscle originates from the medial epicondyle of the humerus and the olecranon of the ulna, inserting onto the pisiform bone, hook of hamate, and base of the 5th metacarpal. What actions does the flexor carpi ulnaris perform? The flexor carpi ulnaris is responsible for flexion and adduction of the wrist, contributing to hand positioning and grip. Which nerve innervates the flexor carpi ulnaris? The flexor carpi ulnaris is innervated by the ulnar nerve, which is essential for its motor function. What is the blood supply for the flexor carpi ulnaris? The blood supply to the flexor carpi ulnaris comes from the ulnar artery and the posterior ulnar recurrent artery, ensuring it receives adequate oxygen and nutrients. Rate This Article