ectopterygoid


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ectopterygoid

(ĕk″tō-tĕr′ĭ-goyd) [Gr. ektos, outside, + pteryx, wing, + eidos, form, shape]
The external (lateral) pterygoid muscle. It brings the jaw forward.
References in periodicals archive ?
5): anterior arm of suspensorium consisting of palatine, relatively broad dorsally, tapering to point about midway along ectopterygoid; ectopterygoid articulating with quadrate along its anterodorsal edge; metapterygoid very thin, "needle-like", not articulating with quadrate or its small cartilaginous posterior edge; no symplectic process on preopercle; ascending process of premaxilla extending dorsally to anterodorsal edge of rostral cartilage; maxilla narrow, lacking process along shaft, with ventral tip curved anteriorly; dentary reduced, lacking large pocket typically receiving anguloarticular; anguloarticular articulating with dentary along ventral groove in dentary and in small anterior pocket near symphysis of dentary.
Villiform teeth in band on premaxilla and dentary; 2-3 (1-2) rows on vomer; 2-3 rows on palatine; none on ectopterygoid, endopterygoid or basihyal.
The ectopterygoid and endopterygoid first appear as ossifying bone at 23 DPH (3.