Medical Definition of Internal pterygoid muscle
1.
Origin, pterygoid fossa of sphenoid and tuberosity of maxilla; insertion, medial surface of mandible between angle and mylohyoid groove; action, elevates mandible closing jaw; nerve supply, nerve to medial pterygoid from mandibular division of trigeminal.
Synonym: musculus pterygoideus medialis, internal pterygoid muscle, musculus pterygoideus internus.
(05 Mar 2000)
Lexicographical Neighbors of Internal Pterygoid Muscle
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