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Swallow Tract

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Deglutition apnea = 0.75 0.14 sec. Expiration before deglutition apnea = 93% Expiration after deglutition apnea = 100%. Klahn and Perlman Dysphagia 14:131 (1999) ... – PowerPoint PPT presentation

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Title: Swallow Tract


1
Swallow Tract

2
Muscles of Mastication Central Pattern
Generator for Chewing
Temperature Touch Proprioception
3
Muscles of Mastication Central Pattern
Generator for Chewing
Masseter Temporalis Internal/External
Pterygoids
4
Taste
5
Taste Pathways
Saliva production
6
Single taste bud contains 50100 taste cells
representing all 5 taste sensations Taste
receptor cells have lifespan of only 3-5 days,
replaced by neurogenesis.
7
Salivary Glands
8
Bolus in oral phase - MBS
9
Lingual muscles
10
Changing posture adjusts anatomical relationships
11
Nasopharyngeal regurgitation
12
Pharyngeal Transit - MBS
13
Lingual muscles cont
As the hyoglossus contracts, what happens to the
hyoid bone? And, to the larynx?
14
Bolus split at valleculae
15
Pharyngoesophageal Transit
16
Residual pooling
17
Pulmonary aspiration
18
Radiographic evidence of tracheal aspiration
19
Radiograph showing large cervical osteophytes
impinging on the esophageal inlet in a patient
complaining of dysphagia.
20
Osteophyte spur indenting the barium column
21
Respiration and Swallowing
  • 12 healthy young adults
  • Deglutition apnea 0.75 0.14 sec.
  • Expiration before deglutition apnea 93
  • Expiration after deglutition apnea 100
  • Klahn and Perlman Dysphagia 14131 (1999)

22
PES, CPS, UES
23
Cricopharyngeal Bar
24
PES narrowing
25
Cricopharyngeal bar
26
Zenkers Diverticulum
http//gi.vghtc.gov.tw8084/Teaching/Eso/EsoAGA/13
7.htm
27
Zenkers Diverticulum
28
Pharyngeal Muscles
Killian's dehiscence
29
(No Transcript)
30
Esophageal Peristalsis
31
Esophageal manometry
32
(No Transcript)
33
(No Transcript)
34
(No Transcript)
35
Stenosis Types
  • Rings and webs bands of mucosal and submucosal
    tissue
  • ring at G-E junction
  • web if located elsewhere
  • Patient has intermittent solid food dysphagia

36
Esophageal web
37
Esophageal web
38
Hiatal hernia
39
Achalasia
40
Irregular mid- esophageal stricture caused by
squamous cell carcinoma of the esophagus.
41
Paraesophageal Hiatal Hernia-Barium Swallow
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