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The Esophagus

The Esophagus. By: Kristina Retherford , Jaidah Wilson, and Emmanuel Sinnathamby. Esophagus. Muscular tube that connects throat/mouth to stomach Covered with pink tissue called mucosa 8 in long (20 cm) In adult about a 1 in. diameter. Role in Digestion.

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The Esophagus

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  1. The Esophagus By: Kristina Retherford, Jaidah Wilson, and Emmanuel Sinnathamby

  2. Esophagus • Muscular tube that connects throat/mouth to stomach • Covered with pink tissue called mucosa • 8 in long (20 cm) • In adult about a 1 in. diameter

  3. Role in Digestion • Takes food from pharynx and delivers to stomach • Muscular contractions-peristalsis • Peristalsis keeps food going toward stomach without needing gravity

  4. Food Delivery • Receive from pharynx (throat) • Already chewed and broken by the teeth • Peristalsis pushes food towards the stomach where it continues the digestion process

  5. Enzymes and Chemicals • No enzymes/chemicals produced in esophagus • Enzymes and chemicals from mouth travel through esophagus

  6. Common Diseases • Heartburn- causes stomach contents to reflux and this can cause coughing/hoarseness or sometimes no symptoms • Esophagitis - inflammation of esophagus which can cause swallowing problems and scarring in esophagus *Many diseases can follow esophagitis such as esophagus cancer, restriction of esophagus, and esophageal ulcers*

  7. Rare Diseases • Achalasia- lower sphincter of the esophagus doesn’t relax properly which causes difficulty swallowing and regurgitation of food • Esophageal Cancer- cancer in esophagus which is very serious which can be caused by smoking, drinking, and chronic reflux

  8. comparisons Normal esophagus Esophagus with cancer Achalasia Esophagus with ulcers

  9. Tests • pH monitoring • Acidity of acid in esophagus • Esophageal Manometry • Strength and pattern of muscle contractions

  10. Bibliography • "Esophagitis Causes, Symptoms, Tests, & Treatments." WebMD. WebMD, 03 Jan. 0000. Web. 10 July 2013. • "The Esophagus (Human Anatomy): Picture, Function, Conditions, and More." WebMD. WebMD, n.d. Web. 10 July 2013. • "Esophagus Tests & Results : PH Testing and More." WebMD. WebMD, n.d. Web. 10 July 2013. • Webster, Meriam. "Esophagus About Our Definitions: All Forms of a Word (noun, Verb, Etc.) Are Now Displayed on One Page." Merriam-Webster. Merriam-Webster, n.d. Web. 10 July 2013.

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