Flexor digitorum profundus muscle
Updates to Article Attributes
Body
was changed:
Flexor digitorum profundus (FDP) makes up the thirdlayer of the anterior compartment of the forearm along with flexor pollicis longus. It passes through the carpal tunnel. It is one of the extrinsic muscles of the hand.
Summary
-
origin:
- medial olecranon, upper three
quarters-quarters of the anterior and medial surface of ulna,adjacnetadjacent interosseous membrane - shares aponeurotic attachment to the posterior border of the ulna with flexor & extensor carpi ulnaris
- medial olecranon, upper three
- insertion: volar surface of distal phalanges 2-5
-
innervation
- medial half (third, fourth and fifth digits): ulnar nerve
- lateral half (second and third digits): anterior interosseous nerve
- the third digit typically receives dual innervation2
- action: flexion at the distal interphalangeal, proximal interphalangeal and wrist joints
-<li>medial olecranon, upper three quarters of anterior and medial surface of ulna, adjacnet interosseous membrane</li>-<li>shares aponeurotic attachment to posterior border of ulna with flexor & extensor carpi ulnaris</li>- +<li>medial olecranon, upper three-quarters of the anterior and medial surface of ulna, adjacent interosseous membrane</li>
- +<li>shares aponeurotic attachment to the posterior border of the ulna with flexor & extensor carpi ulnaris</li>
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