Question

tongue innervation
the cranial nerves that have neural connections with the tongue include all the following except what?
facial nerve (vii)
trigeminal nerve (v)
trochlear nerve (iv)
glossopharyngeal nerve (ix)

Explanation:

• The facial nerve (VII) is involved in taste sensation for the anterior two - thirds of the tongue.
• The trigeminal nerve (V) provides general sensation (touch, pain, temperature) to the anterior two - thirds of the tongue.
• The glossopharyngeal nerve (IX) is involved in taste sensation for the posterior one - third of the tongue and also provides some general sensation.
• The trochlear nerve (IV) is mainly responsible for innervating the superior oblique muscle of the eye and has no connection with the tongue.

Answer:

C. Trochlear nerve (IV)