Maxillary Nerve as, Lateral View

Description

Lateral anatomy of the midface is organized around the course of the maxillary nerve (V2) as it leaves the trigeminal ganglion, traverses the cavernous sinus region, and enters the pterygopalatine fossa through the foramen rotundum. From that fossa, V2 continues anteriorly as the infraorbital nerve through the inferior orbital fissure and infraorbital canal, lying superior to the posterior wall of the maxillary sinus and inferior to the orbital contents. Small sensory branches are expected to radiate from the main trunk in this corridor, including the zygomatic nerve laterally and the posterior superior alveolar nerves descending toward the maxillary molar region, while pterygopalatine (ganglionic) branches run medially toward the pterygopalatine ganglion and its nasal and palatine distributions. Orientation is key. Surgical and dental practice live in this space because V2 is the sensory gateway for the maxillary teeth, maxillary sinus, lateral nose, lower eyelid, and upper lip. A lateral perspective clarifies why the pterygopalatine fossa functions as a crossroads for percutaneous V2 blocks, endoscopic ligation of the sphenopalatine artery, and tumor spread along neural pathways, and it also explains the pattern of hypoesthesia after zygomaticomaxillary complex fractures or infraorbital rim approaches. Referred pain from maxillary sinusitis to the upper dentition makes more sense when you track the posterior superior alveolar branches back to V2. Suitable for neuroanatomy and head and neck anatomy teaching, oral and maxillofacial surgery atlases, and radiology correlation in CT or MR discussions of the foramen rotundum, infraorbital canal, and pterygopalatine fossa lesions. It also pairs well with content on trigeminal neuralgia variants affecting V2 distribution and on regional anesthesia techniques for infraorbital and maxillary nerve blocks. Anatomical accuracy verified by SciePro's Medical Advisory Board.