Buccal Region, Gross Anatomy

Description

Framed in a lateral facial view, the buccal region is defined superiorly by the zygomatic arch and malar eminence, anteriorly by the nasolabial fold, and inferiorly by the mandibular body and oral commissure. Superficial landmarks overlying the buccinator and masseter typically include the buccal fat pad contour, the parotidomasseteric area posterolaterally, and the cutaneous course of the facial artery and vein as they pass anterior to the masseter toward the angle of the mouth. Along the mid-cheek, the expected line of Stensen’s (parotid) duct crosses the masseter before turning medially to pierce the buccinator opposite the maxillary second molar. Surface anatomy matters here. For clinical and teaching correlation, this perspective anchors safe planning for parotid duct repair and for avoiding iatrogenic facial nerve injury, since the buccal and zygomatic branches of the facial nerve course in the superficial musculoaponeurotic system as they traverse the cheek toward the orbicularis oris and zygomaticus musculature. Lacerations over the anterior border of the masseter raise immediate concern for duct disruption, and swelling in the parotidomasseteric region can reflect sialadenitis or obstruction with referred discomfort into the cheek. Cosmetic procedures also depend on this map, from buccal fat pad reduction to filler placement, where the facial artery’s variable path and the proximity of the infraorbital region demand disciplined landmarking. Use this illustration for head and neck gross anatomy labs, dental and oral surgery lectures that teach parotid duct relationships, or for clinical graphics on cheek laceration evaluation and facial injection technique. It also reads well in patient-facing materials when paired with simplified labels of the parotid gland, duct, and major facial landmarks. Anatomical accuracy verified by SciePro's Medical Advisory Board.