Multiple choice

Which of the following factors causes heart-burn?

  1. Acid secreted by stomach reaching the heart

  2. Acid contents going back up into the esophagus

  3. pH of digestive juices getting further lowered due to intake of acidic foods

  4. Overproduction of acids in the stomach
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Correct Answer: Acid contents going back up into the esophagus

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