Upper gastrointestinal series (or study), whereas the barium enema is called a lower gastrointestinal series (or study). In upper gastrointestinal series examinations, the barium sulfate is mixed with water and swallowed orally, whereas in the lower gastrointestinal series (barium enema), the barium contrast agent is administered as an enema through a small tube inserted into the rectum. Barium X-ray examinations are useful tools for the study of appearance and function of the parts of the gastrointestinal tract. They are used to diagnose and monitor esophageal reflux, dysphagia, hiatus hernia, strictures, diverticula, pyloric stenosis, gastritis, enteritis, volvulus, varices, ulcers, tumors, and gastrointestinal dysmotility, as
Colon statue Colon statue Colon" statues, a term derived from the French statues colon" ("colon" is the French noun for a colonist), are a genre of wooden figurative sculpture within African art which originated during the colonial period. The statues commonly depict European colonial officials such as civil servants, doctors, soldiers or technicians or Europeanised middle-class Africans. They are often characterised by recurrent decorative motifs, such as pith helmets, suits, official uniforms or tobacco pipes, and are painted in bright or glossy colours with vegetable-based paints. As a genre, "colon" statues originated in West Africa, apparently among the Baoulé in Ivory Coast.