The facial nerve (CN VII) is the 7th cranial nerve. It has motor and sensory roots that emerge from the brainstem and travel through the internal acoustic meatus in the temporal bone. Within the facial canal, it gives off several branches including the chorda tympani. At the stylomastoid foramen, it branches further to innervate muscles of the face and neck. Its ganglia include the geniculate, submandibular, and pterygopalatine ganglia.