Flexor Digitorum Superficialis - Podcast Version 0:00 / 0:00 1x 0.25x 0.5x 0.75x 1x 1.25x 1.5x 1.75x 2x The flexor digitorum superficialis is a muscle within the intermediate compartment of the anterior forearm. Attachments: Originates from the medial epicondyle of the humerus and the radius. The muscle splits into four tendons at the wrist, which travel through the carpal tunnel, and attach to the base of the middle phalanx of the four digits. Actions: Flexes the metacarpophalangeal joints and proximal interphalangeal joints at the 4 fingers, and flexes at the wrist. Innervation: Median nerve. Blood supply: Ulnar artery. Adobe Stock, Licensed to TeachMeSeries Ltd Fig 1Flexor digitorum superficialis. It has two heads, which arise from the medial epicondyle of the humerus and the shaft of the radius. 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 superficial muscles and tendons of the hand. The tendons of the flexor digitorum superficialis can be seen as they pass through the carpal tunnel to insert onto each digit. Prosection of the superficial muscles and tendons of the hand. The tendons of the flexor digitorum superficialis can be seen as they pass through the carpal tunnel to insert onto each digit. 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 digitorum superficialis? The flexor digitorum superficialis is a muscle located in the intermediate compartment of the anterior forearm. It plays a crucial role in flexing the fingers and the wrist. What are the attachments of the flexor digitorum superficialis? This muscle originates from the medial epicondyle of the humerus and the radius, splitting into four tendons at the wrist that attach to the base of the middle phalanx of the four fingers. What actions does the flexor digitorum superficialis perform? The flexor digitorum superficialis flexes the metacarpophalangeal joints and proximal interphalangeal joints of the four fingers, as well as contributing to wrist flexion. Which nerve innervates the flexor digitorum superficialis? The flexor digitorum superficialis is innervated by the median nerve, which is essential for its motor function in finger and wrist movements. What is the blood supply of the flexor digitorum superficialis? The blood supply to the flexor digitorum superficialis is primarily provided by the ulnar artery, ensuring adequate oxygen and nutrients for the muscle's function. Rate This Article