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

2. 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. 
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.

4. http://academic. kellogg

5. Layers of the Esophagus
Fibrous covering.
b. Divided fibers of longitudinal muscular coat.
c. Transverse muscular fibers.
d. Submucous or areolar layer.
e. Muscularis mucosæ.
f. Mucous membrane, with vessels and part of a lymphoid nodule.
g. Stratified epithelial lining.
h. Mucous gland.
Gland duct.

6. Diseases and Malfunctions
Barrett’s Esophagus
Heartburn
Throat Cancer –adenocarcinoma
Allergies
Choking

7. 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

8. 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

9. Throat Cancer Tumors form in the esophagus
Chemotherapy, surgical removal of tumors, or radiation therapy

10. Allergies Immune system overreacts to a usually non-harmful substance
Allergy medicine , epinephrine

11. Choking Object gets lodged in the pharynx/airway, preventing breathing
Heimlich manuver