What happens if the seventh cranial nerve on the right side of the face is injured?

Show Answers

The chewing muscles would lose their nerve supplyThe muscles responsible for facial expressions would lose their nerve supplyThe sense of taste on the front two-thirds of the right side of the tongue remains intactThe sympathetic nerves to the salivary glands would be disruptedThere would be loss of sensation over the right side of the face

Explanation

Damage to the seventh cranial nerve (facial nerve) on the right side causes paralysis of the muscles involved in facial expression. It does not affect the muscles of mastication, which are innervated by the trigeminal nerve. Additionally, taste sensation from the anterior two-thirds of the tongue may be affected, but sympathetic fibers to salivary glands are not interrupted.