Nerve Supply of Tongue

Tongue’s innervation is divided into three parts: anterior 2/3, posterior 1/3 and root of tongue. Foramen cecum marks the boundary of anterior 2/3 and posterior 1/3.

Motor Innervation

All of the motor innervation is provided by hypoglossal (CN XII) except for the platoglossus muscle which is provided by vagus CN X.

Sensory Innervation

Sensory innervation carries touch, pain, pressure and temperature sensations.

AreaSensory Innervation
Anterior 2/3mandibular branch of trigeminal (CN V-3)
Posterior 1/3glossopharyngeal (CN IX)
Posterior part of the root of tonguevagus (CN X)

Gustatory Innervation

Gustatory innervation carries taste sensations.

AreaGustatory Innervation
Anterior 2/3chorda tympani of facial (CN VII)
Posterior 1/3glossopharyngeal (CN IX)
Posterior part of the root of tongue, upper larynx, upper esophagusvagus (CN X)

For more information on Nerve Supply of the Tongue visit Medicalopedia Reference Encyclopedia



  1. I have noticed you don’t monetize your website,
    don’t waste your traffic, you can earn additional bucks every month because you’ve got high quality content.
    If you want to know how to make extra bucks, search for:
    Mertiso’s tips best adsense alternative


Please enter your comment!
Please enter your name here