Anatomy

Table 1: Distributions and functions of the facial nerve

Muscles suppliedSensory nerve distributionParasympathetic nervous system functions
Facial expressionTaste – anterior two thirds of the tongueSubmandibular gland
ScalpExternal auditory meatusSublingual gland
External earSoft palateLacrimal gland
BuccinatorAdjacent pharynxNasal
Platysma Palatine glands
Stapedius  
Stylohyoid  
Posterior belly of digastric  

The facial nerve (cranial nerve VII) supplies motor branches to the muscles of facial expression and supplies some sensory and parasympathetic fibres (see Table 1).

Fig.1 Image via Shutterstock