Anatom3DCardia
Cardia · Česlo
Digestive system
Looks like
The short zone where the gullet opens into the stomach, just under the diaphragm on the left.
What it does
Lets food in and, with the diaphragm, stops acid washing back up.
Keeping it well
Frequent heartburn is treatable and worth reporting; food sticking on the way down or unexplained weight loss needs urgent investigation.