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Esophagus Anatomy Overview
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Esophagus Anatomy Overview

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Questions and Answers

Which sphincter in the esophagus is under voluntary control?

  • Upper esophageal sphincter (UES) (correct)
  • Lower esophageal sphincter (LES)
  • It is not specified in the text
  • Both UES and LES

    • What is the main function of the lower esophageal sphincter (LES)?

  • Preventing food from entering the windpipe
  • Allowing acid reflux into the esophagus
  • Preventing acid and stomach contents from moving back into the esophagus (correct)
  • Controlling breathing and belching

    • What is the role of the upper esophageal sphincter (UES) in relation to the windpipe?

  • It ensures easy passage of food into the windpipe
  • It prevents food and secretions from entering the windpipe (correct)
  • It controls the airflow in and out of the windpipe
  • It helps in digesting food before reaching the windpipe

    • What is the primary function of the lower esophageal sphincter (LES) in the digestive system?

    <p>Preventing acid and stomach contents from traveling back up the esophagus</p> Signup and view all the answers

    Which statement accurately describes the location of the esophagus in relation to the windpipe (trachea)?

    <p>The esophagus runs behind the trachea</p> Signup and view all the answers

    Which sphincter in the esophagus is under voluntary control and involved in breathing?

    <p>Upper esophageal sphincter (UES)</p> Signup and view all the answers

    What is the function of the upper esophageal sphincter (UES) in relation to preventing aspiration?

    <p>It closes to prevent food and secretions from entering the windpipe</p> Signup and view all the answers

    How does the lower esophageal sphincter (LES) contribute to protecting the stomach?

    <p>By preventing harmful substances from entering the stomach</p> Signup and view all the answers

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