maxillary nerve divides into the large Infraorbital,
zygomatic, and pterygopalatine nerves. The maxillary nerve carries sensation
from the skin of the face and the mucosa and teeth in the maxillary region.
The ganglion rami (pterygopalatine) carry sensory fibers from the mucosa of
the nasal, palatal and pharyngeal regions and convey postganglionic fibers from
the pterygopalatine ganglion and sympathetic fibers (via the ganglion grom the
deep pertrosal nerve) from the lacrimal gland back to the maxillary nerve (and
further to the zygomatic nerves). Superior labial, inferior palpebral, and lateral
nasal cutaneous branches converge to form the infraorbital
nerve which passes through the infraorbital foramen of the maxilla and
traverses the infraorbital canal with the infraorbital artery. It is joined
by anterior branches of the superior alveolar nerve and in the pterygopalatine
fossa becomes the maxillary nerve (V2).