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Lateral pterygoid

Lateral pterygoid

(Science: anatomy, muscle) origin, inferior head from lateral lamina of pterygoid process; superior head from infratemporal crest and adjacent greater wing of the sphenoid; insertion, into pterygoid pit of mandible and articular disk; action, brings jaw forward, opens jaw; nerve supply, nerve to lateral pterygoid from mandibular division of trigeminal.

Synonym: musculus pterygoideus lateralis, external pterygoid muscle, musculus pterygoideus externus.


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... spitting cobras spit venom. The palato-maxillary arch (comprising the pterygoid, palatine, ectopterygoid and maxilla) articulates with the skull ... of the maxilla and venom duct. The system at rest is shown from a lateral (A) and dorsal (B) perspective. Upon contraction of the M. protractor ...

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by David George
Wed Apr 05, 2006 9:45 am
 
Forum: Zoology Discussion
Topic: help for naja
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