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The ________ 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.

Sagot :

The esophageal sphincter  closes after a bolus has been swallowed and enters the stomach.

What is the  esophageal sphincter?

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: https://brainly.com/question/8836658