Question

Which nerve allows touch sensation on the anterior 2/3 of the tongue?

1) Facial nerve (CN VII)
2) Glossopharyngeal nerve (CN IX)
3) Vagus nerve (CN X)
4) Hypoglossal nerve (CN XII)

Answer 1

The Facial nerve (CN VII) allows touch sensation on the anterior 2/3 of the tongue.

Step-by-step explanation:

The nerve that allows touch sensation on the anterior 2/3 of the tongue is the Facial nerve (CN VII). The Facial nerve connects to taste buds in the anterior third of the tongue, while the Glossopharyngeal nerve connects to taste buds in the posterior two-thirds of the tongue. The Vagus nerve connects to taste buds in the extreme posterior of the tongue, closer to the pharynx.