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Forearm
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=== Muscles === {{See also|Muscle table#Forearm}} {| class="sortable wikitable" ! Compartment !! Level !! Muscle !! E/I !! Nerve |- | Anterior || superficial || [[flexor carpi radialis]] || E || median |- | Anterior || superficial || [[palmaris longus]] || E || median |- | Anterior || superficial || [[flexor carpi ulnaris]] || E || ulnar |- | Anterior || superficial || [[pronator teres]] || I || median |- | Anterior || superficial (or intermediate) || [[flexor digitorum superficialis|flexor digitorum superficialis (sublimis)]] || E || median |- | Anterior || deep || [[flexor digitorum profundus]] || E || ulnar + median |- | Anterior || deep || [[flexor pollicis longus]] || E || median |- | Anterior || deep || [[pronator quadratus]] || I || median |- | Posterior || (see below) || [[brachioradialis]] || I || radial |- | Posterior || superficial || [[extensor carpi radialis longus]] || E || radial |- | Posterior || superficial || [[extensor carpi radialis brevis]] || E || radial |- | Posterior || intermediate || [[extensor digitorum|extensor digitorum (communis)]] || E || radial |- | Posterior || intermediate || [[extensor digiti minimi|extensor digiti minimi (proprius)]] || E || radial |- | Posterior || superficial || [[extensor carpi ulnaris]] || E || radial |- | Posterior || deep || [[abductor pollicis longus]] || E || radial |- | Posterior || deep || [[extensor pollicis brevis]] || E || radial |- | Posterior || deep || [[extensor pollicis longus]] || E || radial |- | Posterior || deep || [[extensor indicis|extensor indicis (proprius)]] || E || radial |- | Posterior || deep || [[supinator]] || I || radial |- | Posterior || deep || [[anconeus]] || I || radial |} * "E/I" refers to "extrinsic" or "intrinsic". The intrinsic muscles of the forearm act on the forearm, meaning, across the elbow joint and the [[Proximal radioulnar articulation|proximal]] and [[Distal radioulnar articulation|distal]] radioulnar joints (resulting in [[pronation]] or [[supination]]), whereas the extrinsic muscles act upon the hand and wrist. In most cases, the extrinsic anterior muscles are ''flexors'', while the extrinsic posterior muscles are ''extensors''. * The brachioradialis, flexor of the forearm, is unusual in that it is located in the [[posterior compartment of the arm|posterior compartment]], but it is actually in the anterior portion of the forearm. * The [[anconeus]] is considered by some as a part of the [[posterior compartment of the arm]].<ref name="titleDissector Answers β Axilla & Arm">{{cite web|url=http://anatomy.med.umich.edu/musculoskeletal_system/axilla_ans.html |title=Dissector Answers β Axilla & Arm |access-date=2008-01-17 |archive-url=https://web.archive.org/web/20080103065905/http://anatomy.med.umich.edu/musculoskeletal_system/axilla_ans.html |archive-date=3 January 2008 |url-status=dead | publisher = The University of Michigan }}</ref>
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