Anterior compartment of the forearm: Deep muscles Flashcards
Flexor digitorum profundus
O: Ulna (proximal two thirds of flexor surface) and interosseous membrane
I: Distal phalanges of 2nd to 5th digits (palmar surface)
N: Median n. (C8, T1)
Ulnar n. (C8, T1)
A; Wrist, MCP, PIP and DIP of the 2nd to 5th digits: flexion
Flexor pollicilis longus
O: Radius (midanterior surface) and adjacent interosseous membrane
I: Distal phalanx of thumb (palmar surface)
N: Median n. (c8, T1)
A: Wrist: Flexion and abduction (radial deviation) of hand
Carpometacarpal of thumb: flexion MCP and IP of thumb: flexion
Pronator Quadratus
O: Distal quarter of ulna (anterior surface)
I: Distal quarter of radius (anterior surface)
N: Median n. (C8, T1)
A: Hand: pronation
Distal radioulnar joint : stabilization