Wrist Flexors

ExRx.net > Kinesiology > Directory > Muscle

Other Names Forearm (Inner) Hand Flexors Heads Flexor Digitorum Superficialis Flexor Digitorum Profundus 4 Heads Flexor Carpi Radialis Flexor Carpi Ulnaris Palmaris Longus Flexor Pollicis Longus Movement Wrist Flexion [1, 2, 3, 4, 5, 6] Abduction [3] Adduction [4] Fingers Flexion [1, 2] Adduction [1, 2] Thumb Flexion [6] Elbow (very weak) Flexion [1, 3, 4, 5] Attachments Origin Humerus (Medial Distal) Medial Epicondyle [1, 3 , 4, 5] Ulna Medial Coronoid [1] Proximal 3/4 (Anterior & Medial) [2] Proximal Posterior [4] Radius (Middle Anterior) [1, 6] Insertion Fingers (Palmer Surface) Sides of middle phalanges [1] Base of distal phalanges [2] Thumb (Palmer Surface) Base of distal phalanx [6] Metacarpals (Palmer Surface) Second & Third [3] Fifth [4] Second, Third, Fourth, Fifth Palmer Aponeurosis [5] Carpals (Medial) [4] Pisiform Hamate

Comments The triarticulate [1] and biarticulate [2, 3, 4, 5, 6 ] wrist flexor muscles may independently enter passive insufficiency through the completion of one of 4 eccentric joint movements (opposite movements of the wrist, fingers, thumb, elbow) when an adjacent joint eccentric movement is sustained. The triarticulate and biarticulate wrist flexor muscles [1, 2, 3, 4, 5, 6 ] may independently enter active insufficiency through the completion of one of 4 concentric joint movements (movements of the wrist, fingers, thumb, elbow) when an adjacent joint concentric movement is sustained. The Palmaris Longus is absent on one or both sides in about 21% of people.