The esophageal sphincter closes after a bolus has been swallowed and enters the stomach.
<h3>What is the esophageal sphincter?</h3>
The esophageal sphincter is a sphincter that separates the esophagus from the stomach. The muscle attached thereto pushes the bolus down the stomach.
Hence, esophageal sphincter closes after a bolus has been swallowed and enters the stomach. This sphincter is essential to prevent the contents of the stomach reentering the esophagus.
Learn more about the stomach: brainly.com/question/8836658
