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Which structure prevents the backflow of food from the stomach to the esophagus?

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Question: Which structure prevents the backflow of food from the stomach to the esophagus? (2020)

Options:

  1. Pyloric sphincter
  2. Cardiac sphincter
  3. Ileocecal valve
  4. Anal sphincter

Correct Answer: Cardiac sphincter

Exam Year: 2020

Solution: 

The cardiac sphincter, also known as the lower esophageal sphincter, prevents the backflow of food from the stomach to the esophagus.

Which structure prevents the backflow of food from the stomach to the esophagus?

Practice Questions

Q1
Which structure prevents the backflow of food from the stomach to the esophagus? (2020)
  1. Pyloric sphincter
  2. Cardiac sphincter
  3. Ileocecal valve
  4. Anal sphincter

Questions & Step-by-Step Solutions

Which structure prevents the backflow of food from the stomach to the esophagus? (2020)
  • Step 1: Understand that the stomach and esophagus are parts of the digestive system.
  • Step 2: Know that food moves from the esophagus to the stomach.
  • Step 3: Learn that sometimes food can go back from the stomach to the esophagus.
  • Step 4: Identify the structure that stops this backflow.
  • Step 5: Recognize that this structure is called the cardiac sphincter or lower esophageal sphincter.
No concepts available.
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