31. Isoxsuprine may increase the heart rate, cause changes in blood pressure, and irritate the GI tract . 32. Vitamin D stimulates absorption of calcium from the GI tract through its interaction with receptors in the enterocyte. 33. There are diagnostic tools mostly involving the ingestion of barium sulphate to investigate disorders of the GI tract . 34. Drugs to protect the GI tract such as omeprazole, cimetidine, and sucralfate are frequently used with phenylbutazone. 35. If held there long enough, the drug will diffuse into the blood stream, bypassing the GI tract . 36. They act on a variety of tissues including the brain, digestive accessory organs, and the GI tract . 37. Rectal examinations are often repeated over the course of a colic to monitor the GI tract for signs of change. 38. Gastrointestinal leiomyosarcomas might come from smooth muscle in the GI tract or, alternatively, also from a blood vessel. 39. The evidence presented for this consisted primarily of the detection of measles virus in Michelle Cedillo's GI tract . 40. Food in the GI tract is called a bolus ( ball of food ) from the mouth down to the stomach.
