Stroke

Question 1

Corticol stroke

Answer 1

bilateral innervation and likely alternative routes of innervation mean that recovery is often rapid, when the primary motor cortex is involves then dysphagia is more likely to persist
likely deficits: difficulty initiating the swallow, incoordination of oral movement, increased pharyngeal transit time

Question 2

Brainstem stroke

Answer 2

brainstem contains swallowing centre so the individual is more likely to get aphasia
likely deficits: absent or delayed pharyngeal response, reduced hyolaryngeal excursion, reduced pharyngeal constriction

Question 3

Lateral medullary stroke

Answer 3

commonly caused by the occlusion of the posterior inferior cerebellar artery or one of its branches supplying the lower part of the brainstem
likely deficits: pharyngeal stage of the swallow