10th Cranial Nerve Paralysis

Etiology

Vagus nerve pathway is affected. eg by tumor or aneurysm.

Vagus nerve:

Supplies nerve fibers to the pharynx, larynx, trachea, lungs, heart, esophagus and the intestinal tract as far as the transverse colon.

The vagus nerve brings sensory information back from the ear, tongue, pharynx and larynx.

Manifestation:

 When pt says “Ah” the soft palate on the paralyzed side fails to rise. The uvula deviates tot he uninvolved side.

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