Cranial Nerve Palsy - XII : Hypoglossal Nerve

Question 1

Motor Functions of Hypoglossal Nerve.

Answer 1

Intrinsic and Extrinsic Tongue Muscles except Palatoglossus (Vagus).

Question 2

Aetiology of Hypoglossal Nerve Palsy.

Answer 2

1. Head and Neck Malignancy.

2. Penetrating Traumatic Injuries.

Question 3

Clinical Features of Hypoglossal Nerve Palsy.

Answer 3

1. Deviation of Tongue Towards Damaged Side (Lick Lesion).

2. Muscle Wasting and Fasciculations of Affected Side.