Buccinator Muscle Beneath the Skin, Lateral View

Description

Beneath the facial skin in a lateral male head view, the buccinator occupies the muscular wall of the cheek, spanning from the maxillary and mandibular alveolar processes in the molar region toward the modiolus at the oral commissure, where it blends with orbicularis oris and fibers of the risorius. Posteriorly, its free edge meets the pterygomandibular raphe, a fibrous seam that also anchors the superior pharyngeal constrictor, placing the muscle just anterior to the mandibular ramus and the medial pterygoid region. Superficial landmarks of the maxilla, mandible, and temporomandibular joint outline the bony frame around it. Orientation is clear. Functionally, this is the cheek muscle that matters to dentists and oral surgeons because it defines the lateral boundary of the oral cavity and keeps the food bolus on the occlusal tables of the molars during mastication, working in concert with the masseter and tongue. The parotid (Stensen) duct runs across the masseter, turns medially, and pierces the buccinator to open into the oral vestibule opposite the maxillary second molar, so this relationship guides duct cannulation, sialendoscopy, and incision planning for buccal space infections. Buccal branches of the facial nerve course superficially to the buccinator, a practical reminder when elevating cheek flaps or managing facial lacerations. Use this artwork for head and neck anatomy teaching, dental occlusion and oral cavity modules, and surgical texts covering parotid duct injury, buccal mucosal lesions, and intraoral approaches near the pterygomandibular raphe (including inferior alveolar nerve block landmarking). It also fits clinical patient education on cheek biting, postoperative swelling, and salivary duct obstruction. Anatomical accuracy verified by SciePro's Medical Advisory Board.