Lateral Nasal Artery, Lateral View

Description

Arising from the facial artery near the nasolabial region, the lateral nasal artery courses superiorly along the lateral wall of the nose at the cheek to nasal junction, running anterior to the maxilla and inferior to the medial orbital rim. From a left lateral view, the vessel sits superficial to the nasal bones and alar cartilages in life, with neighboring branches of the angular artery ascending toward the medial canthus and small alar branches turning medially toward the nostril. Bony landmarks including the orbit, piriform aperture, zygomatic bone, maxilla, mandible, and dentition provide orientation for the vessel’s position relative to the nasal cavity and midface. For clinicians, this segment of the facial arterial system matters because it defines a common source of brisk bleeding in nasal and perinasal lacerations and it informs safe planes for rhinoplasty, alar base reduction, and nasolabial flap design. Its anastomoses with dorsal nasal branches of the ophthalmic artery and with the angular artery are a practical reminder of external carotid to internal carotid connections, relevant to filler injections near the nasojugal fold and sidewall where inadvertent intra-arterial embolization can threaten the retina. Small vessel, high consequence. Educators will find the lateral perspective useful for teaching head and neck vascular anatomy alongside surface landmarks, pairing well with cadaveric dissection labs, otolaryngology modules on epistaxis and nasal trauma, and facial plastics content on flap perfusion territories. Publishers can also place it in atlases or procedural guides to support discussions of facial artery branching patterns, hemostasis, and risk zones for perinasal injections. Anatomical accuracy verified by SciePro's Medical Advisory Board.