X-ray of the human stomach after a barium meal

X-ray of the human stomach after a barium meal

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Credit: SCIENCE PHOTO LIBRARY

Caption: X-ray of the stomach, enhanced using a barium meal (a suspension of barium sulphate, opaque to x- rays, that is given orally prior to taking the x- ray). The stomach is a sac-like organ forming part of the alimentary tract between the oesophagus (top, the tube leading up to mouth) & the duodenum (begins at left of stomach). The entrances to both oesophagus & duodenum are divided by the cardiac & pyloric sphincters (rings of muscle) respectively. The stomach's function is to continue the digestion process begun in mouth. Gastric juices, containing hydrochloric acid & enzyme pepsin, together with a churning action, reduce food to a semiliquid mass (chyme) before it enters duodenum.

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Keywords: anatomy, barium meal, digestion, digestive system, esophagus, gut, human body, oesophagus, stomach, x-ray, xray

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