About us. Use Cases. The flexor digitorum profundus is a muscle in the forearm of humans that flexes the fingers (also known as digits). The flexor digitorum profundus helps flex the fingers. Please contact: info@anatomynext.com. It is considered an extrinsic hand muscle because it acts on the hand while its muscle belly is located in the forearm. First Online: 15 March 2019. 7. Flexes the hand at the wrist joint. Action : It acts as flexor of metacarpophalangeal joints and extensor of interphalangeal joints. Partners. Contact infomation. ACTIONS: Flexes fingers #2-5 at the metacarpophalangeal and proximal and distal interphalangeal joints. NOTE: The distal tendons of the flexor digitorum profundus run through the carpal tunnel and can be involved with carpal tunnel syndrome. Information. Flexor Tendon and Muscles Anatomy Mnemonic . Contact us. The muscle originates in the upper part of the ulna bone. In relation to individual structures, there is a simple flexor tendon anatomy mnemonic – the rule of 3,2,1: 3 Flexor Tendons: Flexor Digitorum Profundus (FDP), Flexor Digitorum Superficialis (FDS) and Flexor Pollicis Longus (FPL) For questions regarding business inquiries. Insertion : It inserts on the Extensor expansion near the metacarpophalangeal joint. Innervation. Together the flexor pollicis longus, pronator quadratus, and flexor digitorum profundus form the deep layer of ventral forearm muscles. Blog . The flexor digitorum profundus provides flexion of all phalanges of the four digits and flexion of the hand. Licensing. 518 Downloads; Part of the In Clinical Practice book series (ICP) Abstract. Nerve Supply : It is supplied by the median nerve and deep branch of ulnar nerve. Action. Flexor Digitorum Profundus Avulsion Injuries. The flexor digitorum profundus is innervated by the median nerve. It inserts at the distal phalanges in the tips of the fingers. FDP avulsion injuries are a type of Zone I flexor tendon injury, leaving patients unable to flex the distal interphalangeal joint. Interossei : Flexor tendon anatomy can be best understood by individual structures or zones of the hand. Authors; Authors and affiliations; Heather L. Baltzer; Steven L. Moran; Chapter. It originates from the Flexor Digitorum Profundus muscle.

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