What Is Palatal Palsy

Unilateral acquired isolated palatal (velopalatopharyngeal) paralysis is a clinical rarity usually seen in children. This isolated palatal palsy is the result of isolated involvement of the pharyngeal branch of the vagus nerve, which supplies motor fibers to muscles of the pharynx and soft palate.

What is palatal weakness?

Weakness of palatal muscles can occur in roughly 40% of all patients. It can cause the voice to become hypophonic and assume a nasal twang. Nasal regurgitation of food (especially liquids) can occur. An inability to pucker lips or whistle, or puffing the cheeks out against resistance can be noted.

What cranial nerve controls the uvula?

Cranial nerve X – Vagus nerve The pharyngeal branch travels between the internal and external carotid arteries and enters the pharynx at the upper border of the middle constrictor muscle, supplying levator veli palatini, salpingopharyngeus, palatopharyngeus and the uvula.