DYSPHAGIA

9/11/01


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Table of Contents

DYSPHAGIA

Esophagus

Esophagus

Esophagus (cont.)

Esophagus (cont.)

Esophagus (cont.)

Meissner's plexus

Esophagus (cont.)

Auerbach's plexus

Esophagus (cont.)

Swallow Response Neurophysiology

A. Sensory Input

A. Sensory Input (cont.)

A. Sensory Input (cont.)

Primary Afferent input controlling the swallowing response is from the Superior Laryngeal Nerve. (Kahrilas Figure 2-5, page 17)

B. Motor Innervation

C. CENTRAL SWALLOW CENTER?

C. CENTRAL SWALLOW CENTER?

C. CENTRAL SWALLOW CENTER?

C. CENTRAL SWALLOW CENTER?

Schematic of Theoretical Model of Neural Control of Swallowing

C. CENTRAL SWALLOW CENTER?

NOTE: CORTICAL INPUT IS NOT NECESSARY FOR NORMAL SWALLOW RESPONSE (HOWEVER, DAMAGE TO PRECENTRAL GYRUS HAS BEEN ASSOCIATED WITH ORAL PHASE IMPAIRMENT)

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Swallow Response Neurophysiology (cont.)

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Author: Department of Otolaryngology

Email: michael-karnell@uiowa.edu

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