Stomach Layers. The Stomach Is A Muscular, Hollow, Dilated Part Of The Digestive System Which Functions As An Important Organ Of The Digestive Tract In Some Animals, Including Vertebrates, Echinoderms, Insects (Mid-Gut), And Molluscs. It Is Involved In The Second Phase Of Digestion, Following Mastication (Chewing).

KEYWORDS

abdomen acid anatomy background biology body cardia diet digestion digestive disease eating esophagus female food fundus gastric health healthcare healthy heartburn human illness illustration indigestion internal layers medical medicine organ pain people pylorus reflux science sick stomach stomache system