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Esophagus/Pharynx. Sarah Coyan /Emma Cressey. Facts.

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esophagus pharynx

Esophagus/Pharynx

Sarah Coyan/Emma Cressey

facts
Facts
  • The esophagus is approximately 25cm long. Muscles contract in waves to move the food down the esophagus (peristalsis). This means that food would get to a person‘s stomach, even if they were standing on their head. http://library.thinkquest.org/J0112205/interesting_facts.htm
  • The diameter of your esophagus is 24mm, the diameter of a quarter.
  • The thickness of your esophageal wall is 4mm, the width of 3 pennies. http://health.usf.edu/medicine/internalmedicine/swallowing/Esophagus+Fun+Facts.htm
slide4

http://academic.kellogg.edu/herbrandsonc/bio201_mckinley/f26-1_digestive_system_c.jpghttp://academic.kellogg.edu/herbrandsonc/bio201_mckinley/f26-1_digestive_system_c.jpg

layers of the esophagus
Layers of the Esophagus

Fibrous covering.

b. Divided fibers of longitudinal muscular coat.

c. Transverse muscular fibers.

d.Submucous or areolar layer.

e.Muscularismucosæ.

f. Mucous membrane, with vessels and part of a lymphoid nodule.

g. Stratified epithelial lining.

h. Mucous gland.

Gland duct.

http://www.theodora.com/anatomy/the_esophagus.html

diseases and malfunctions
Diseases and Malfunctions
  • Barrett’s Esophagus
  • Heartburn
  • Throat Cancer –adenocarcinoma
  • Allergies
  • Choking
barrett s esophagus
Barrett’s Esophagus
  • Tissue in esophagus is replaced with tissue similar to the tissue in the intestines
  • People with GERD (gastroesophageul reflux disease) are more likely to develop Barrett’s esophagus
  • Endoscopic treatment
  • Surgical removal if severe

http://digestive.niddk.nih.gov/ddiseases/pubs/barretts/

http://en.wikipedia.org/wiki/Barrett%27s_esophagus

heartburn
Heartburn
  • Sphincter between esophagus and stomach doesn’t close properly or completely
  • Stomach acids leak into esophagus and dissolve lining
  • If severe, called gastroesophageal reflux disease (GERD)
  • Heartburn medication

http://www.riversideonline.com/source/images/image_popup/r7_heartburn.jpg

throat cancer
Throat Cancer
  • Tumors form in the esophagus
  • Chemotherapy, surgical removal of tumors, or radiation therapy

http://www.aurorahealthcare.org/healthgate/images/si1499.jpg

allergies
Allergies
  • Immune system overreacts to a usually non-harmful substance
  • Allergy medicine , epinephrine

http://www.alk-abello.com/media/imagelibrary/Lists/ImageLibraryList/ALK_EpiPen_YW8M4845.jpg

https://health.google.com/health/ref/graphic/19316

choking
Choking
  • Object gets lodged in the pharynx/airway, preventing breathing
  • Heimlich manuver

http://www.miami-als.org/newsletter/v1i198/images/heimlich.jpg