Lateral Pterygoid Plate Of The Sphenoid, Lateral View

Description

Lateral pterygoid plate of the sphenoid forms the lateral lamina of the pterygoid process on the inferolateral skull base, presented here from a lateral aspect that emphasizes its broad, quadrilateral bony surface. Superiorly, the plate relates to the greater wing and the infratemporal surface of the sphenoid, while its inferior margin descends toward the pyramidal process region where it meets the palatine bone. Along its lateral surface, the plate provides attachment for the inferior head of the lateral pterygoid muscle, and its posterior border helps define the medial boundary of the infratemporal fossa. Adjacent contours imply the nearby pterygoid fossa medially, even though the medial pterygoid plate and hamulus lie out of primary profile from this angle. The lateral plate is a practical landmark for understanding masticatory muscle vectors and temporomandibular joint biomechanics, since lateral pterygoid tone and dysfunction can influence disc position and mandibular translation. Clinically, its relationship to the infratemporal fossa matters when navigating toward the mandibular nerve (V3) near foramen ovale, and when interpreting fracture lines that traverse the pterygoid processes in Le Fort patterns or craniofacial trauma. Bony ridges and margins are modeled with enough separation to distinguish muscle attachment zones from the neighboring skull base surfaces. Small details matter. Use this illustration in gross anatomy and dental curricula when teaching the sphenoid, pterygoid process anatomy, and the spatial logic of the infratemporal and pterygopalatine regions, and in surgical texts discussing transmaxillary or endoscopic routes that use the pterygoid process as a bony waypoint. It also supports radiology and CT correlation modules focused on skull base trauma and TMJ-related anatomy. Anatomical accuracy verified by SciePro's Medical Advisory Board.