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Achalasia - Answers Failure of lower esophageal sphincter to relax.
Lower Esophageal Sphincter (LES) - Answers Muscle that relaxes during swallowing.
Chagas Disease - Answers Causes achalasia; ganglion cells destroyed.
Dysphagia - Answers Difficulty swallowing food or liquids.
Regurgitation - Answers Bolus returns to mouth if not swallowed.
Nocturnal Regurgitation - Answers Vomiting while sleeping; affects ⅓ of patients.
Barium Swallow Test - Answers X-ray test to visualize esophagus function.
Bird Beak Sign - Answers X-ray indication of achalasia.
GERD - Answers Gastroesophageal reflux disease; acid reflux.
Heartburn - Answers Burning sensation in chest due to reflux.
Odynophagia - Answers Painful swallowing; symptom of esophageal issues.
Barrett's Esophagus - Answers Precancerous condition from chronic GERD.
Metaplasia - Answers Replacement of one cell type with another.
Squamous Cell Carcinoma - Answers Cancer typically in upper two-thirds of esophagus.
Adenocarcinoma - Answers Cancer usually in lower third; linked to Barrett's.
Gastroenteritis - Answers Inflammation of the GI tract; viral or bacterial.
Rotavirus - Answers Most common viral cause in children.
Norovirus - Answers Most common viral cause in adults.
Enterotoxigenic Infections - Answers Bacteria releasing toxins causing GI inflammation.
Stool Culture - Answers Test to identify pathogens in diarrhea.
GERD dehydration Signs - Answers Skin elasticity, sunken fontanelles, low urine output.
Endoscopy - Answers Procedure to visualize esophagus via camera.
Esophageal Manometry - Answers Measures pressure of the esophageal sphincter.
Symptoms of Viral Infection - Answers Diarrhea, cramps, nausea, low-grade fever.