ABSTRACT
The equivalent nerves are sphenopalatine and nasal branches of the maxillary nerve posteriorly, and anterior ethmoidal branches of the nasociliary (a branch of V1) anteriorly.
Maxillary nerve (V2) – The maxillary nerve is a sensory nerve that has ‘picked-up’ postganglionic secretomotor fibres from the pterygopalatine ganglion. Before passing into the inferior orbital fissure to become the infra-orbital nerve, the maxillary gives a zygomatic branch and the posterior, superior dental (alveolar) nerves. The latter, along with other superior dental nerves that arise from the infra-orbital and pass in the wall of the maxillary sinus (giving the sinus its sensation and secretomotor supply) provide sensation to the upper teeth.
