What is Flexor Digitorum Profundus?
Flexor Digitorum Profundus Muscle Introduction The Flexor Digitorum Profundus (FDP) is a deep muscle of the anterior compartment of the forearm , playing a critical role in flexing the distal interphalangeal (DIP) joints of the fingers. This muscle allows for strong gripping and fine finger control. It is particularly important in daily tasks like writing, typing, grasping, and climbing. Its deep anatomical location and complex function make it essential for both gross and fine motor skills of the hand. Anatomy of Flexor Digitorum Profundus Origin: The FDP originates from: The proximal three-quarters of the anterior and medial surfaces of the ulna The interosseous membrane between the ulna and radius Deep fascia of the forearm Insertion: Each of the four tendons of the FDP inserts onto the base of the distal phalanges of the medial four fingers (index, middle, ring, and little fingers). Nerve Supply: The muscle has a dual innervation: Median nerve ( an...