posterior interosseous nerve

(redirected from Posterior interosseus nerve)

pos·te·ri·or in·ter·os·se·ous nerve

[TA]
the terminal portion of the deep branch of the radial nerve; arises in the cubital region, penetrating and supplying the supinator and continuing with the posterior interosseous artery to supply all the extensor muscles in the forearm.

pos·te·ri·or in·ter·os·se·ous nerve

(pos-tēr'ē-ŏr in'tĕr-os'ē-ŭs nĕrv) [TA]
The deep terminal branch of the radial nerve; arises in the cubital region, penetrating and supplying the supinator and continuing with the posterior interosseous artery to supply all the extensor muscles in the forearm.
Synonym(s): nervus interosseus antebrachii posterior [TA] .
References in periodicals archive ?
Posterior interosseus nerve paralysis caused by ganglion at the elbow.
The posterior interosseus nerve is a branch of the radial nerve just distal to the elbow joint and supplies the supinator muscle and extensors of the wrist and fingers.
Initially, these findings were attributed to neurapraxia of both the LACN and posterior interosseus nerve (PIN) caused by intraoperative retraction.
Other reported sites of involvement are the radial, ulnar, median, sciatic, tibial, and posterior interosseus nerves.

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