Facial Artery, Lateral View

Description

Arising from the external carotid artery in the upper neck, the facial artery courses anterosuperiorly deep to the posterior belly of digastric and stylohyoid, then enters the face by winding over the inferior border of the mandible just anterior to the masseter. From that palpable mandibular notch, the vessel runs obliquely across the cheek toward the modiolus, lying lateral to the mandibular body but anterior to the ramus, with the maxilla and zygomatic region forming the superior bony backdrop. Superficial facial veins accompany the arterial pathway in blue, while the common carotid and external carotid trunks remain posterior and medial within the carotid triangle, aligned with the cervical vertebrae. Surgeons and proceduralists care about this lateral relationship because the facial artery’s tortuosity and its crossover of the mandibular margin define a predictable site for pulse palpation and for unintended vascular injury. Facial lacerations along the mandibular body or nasolabial fold can bleed briskly when this artery or its labial branches are transected. During submandibular gland surgery, platysma and marginal mandibular branch dissection also happens in the same neighborhood, and a clear map of the vessel’s ascent helps avoid hematoma and nerve-related smile asymmetry. Use this artwork in head and neck anatomy teaching to anchor the external carotid branching pattern and to contrast arterial and venous pathways in a single lateral plate. It also supports clinical graphics for emergency medicine, oral and maxillofacial surgery, ENT, and dermatologic filler safety discussions where arterial course near the mouth corner is the point. Anatomical accuracy verified by SciePro's Medical Advisory Board.