A bit of dust blows into and touches the cornea of the eye. Which of the following is likely to happen?

a. Stimulation of the optic nerve (II) will cause tears to flow from the lacrimal gland.

b. Stimulation of the facial nerve (VII) will be perceived as pain.

c. Nothing, because there is no sensory information sent from the cornea.

d. Stimulation of the ophthalmic division of the trigeminal nerve (V) will cause blinking.

Question

Biology

Belen Pugh

19 November, 12:29

A bit of dust blows into and touches the cornea of the eye. Which of the following is likely to happen?

a. Stimulation of the optic nerve (II) will cause tears to flow from the lacrimal gland.

b. Stimulation of the facial nerve (VII) will be perceived as pain.

c. Nothing, because there is no sensory information sent from the cornea.

d. Stimulation of the ophthalmic division of the trigeminal nerve (V) will cause blinking.

+1

Answers (1)

Know the Answer?

Jadyn Gentry · Answer 1

Option D

Explanation:

The cornea is one of the most sensitive tissues of the body, as it is densely innervated with sensory nerve fibres via the ophthalmic division of the trigeminal nerve by way of 70-80 long ciliary nerves. Hence the answer would be option D.