Question

What is cardiac sphintor ?

Answer 1

It is a flap like structure present at rhe opening of stomach which opens when food enters and closes when digestion takes place.

Sometimes when we overeat this remains open and due to pressure generated because of digestion anti peristalsis occurs and we vomit.

It is also known as the heart of stomach.

Answer 2

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The lower sphincter, or cardiac sphincter, at the upper portion (cardia) of the stomach. This sphincter prevents the acidic contents of the stomach from moving upward into the esophagus. ... The inner sphincter is involuntary and the outer is voluntary.