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Mastication, Deglutition, and Dysphagia

GI Podcast Presentation

Sivateja Mandava

on 25 September 2012

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Transcript of Mastication, Deglutition, and Dysphagia

TBL Team #1 GI Project Presentation Mastication Deglutition Dysphagia Open Jaw Masseter Medial Pterygoid Lateral Pterygoid Temporalis Close Jaw Physical Breakdown Finished Salivary Secretion Start (cc) image by nuonsolarteam on Flickr Begin Deglutition Fun Fact: Out of the 4 muscles involved in chewing, the lateral pterygoid is the only one involved in opening the mouth. The rest
act to close the mouth! Fun Fact: When swallowing, if the soft palate does not completely close off the entrance to the nasopharynx, food may come out of the nose! This might occur if a person laughs while eating or drinking. Fun Fact: As many as half of all Americans will experience dysphagia. References:
1. Barrett KE, Barman SM, Boitano S, Brooks HL. Chapter 27. Gastrointestinal Motility. In: Barrett KE, Barman SM, Boitano S, Brooks HL, eds. Ganong's Review of Medical Physiology. 24th ed. New York: McGraw-Hill; 2012. Available at: http://www.accessmedicine.com/content.aspx?aID=56264175. Accessed September 24, 2012.

2. Morton DA, Foreman KB, Albertine KH. Chapter 21. Infratemporal Fossa. In: Morton DA, Foreman KB, Albertine KH, eds. The Big Picture: Gross Anatomy. New York: McGraw-Hill; 2011. http://www.accessmedicine.com/content.aspx?aID=8667394. Accessed September 24, 2012.

3. Weisbrodt NW. Swallowing. In: Leonard R. Johnson P, ed. Gastrointestinal physiology. 7th ed. Philadelphia, PA: Mosby Elsevier; 2007.

4. Baroni, Anna Flávia Ferraz Barros; Fabio, Soraia Ramos Cabette and Dantas, Roberto Oliveira. Risk factors for swallowing dysfunction in stroke patients. Arq. Gastroenterol. 2012, vol.49, pp. 118-124.
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