Anatomy Forearm

1 anatomy

1.1 bones
1.2 joints
1.3 muscles
1.4 nerves
1.5 vessels
1.6 other structures

anatomy
bones

radius
ulna

joints

proximal forearm

elbow


in forearm

proximal radioulnar joint
distal radioulnar joint


distal forearm

wrist



muscles



e/i refers extrinsic or intrinsic . intrinsic muscles of forearm act on forearm, meaning, across elbow joint , proximal , distal radioulnar joints (resulting in pronation or supination, whereas extrinsic muscles act upon hand , wrist. in cases, extrinsic anterior muscles flexors, while extrinsic posterior muscles extensors.
the brachioradialis, flexor of forearm, unusual in located in posterior compartment, in anterior portion of forearm.
the anconeus considered part of posterior compartment of arm.

nerves

(see separate nerve articles details on divisions proximal elbow , distal wrist; see brachial plexus origins of median, radial , ulnar nerves)

median nerve – interior nerve of anterior compartment (pt, fcr, pl, fds).

anterior interosseous nerve (supplies fpl, lat. 1/2 of fdp, pq).


radial nerve – supplies muscles of posterior compartment (ecrl, ecrb).

superficial branch of radial nerve
deep branch of radial nerve, becomes posterior interosseus nerve , supplies muscles of posterior compartment (ed, edm, ecu, apl, epb, epl, ei).


ulnar nerve - supplies medial muscles (fcu, med. 1/2 of fdp).

vessels


brachial artery

radial artery

radial recurrent artery
dorsal metacarpal artery

princeps pollicis artery




ulnar artery

anterior ulnar recurrent artery , posterior ulnar recurrent artery
common interosseous artery

posterior interosseous artery
anterior interosseous artery







other structures

interosseous membrane of forearm
annular ligament of ulna




^ dissector answers — axilla & arm . archived original on 3 january 2008. retrieved 2008-01-17.