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Glossary

Showing 471-480 out of 1175 Terms

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  • Gadolinium

    (GA-duh-LIH-nee-um)

    A metal element that is used in magnetic resonance imaging (MRI) and other imaging methods. It is a contrast agent, which helps show abnormal tissue in the body during imaging with a special machine.

  • Gallbladder

    (GAWL-bla-der)

    The pear-shaped organ found below the liver. Bile is concentrated and stored in the gallbladder.

  • Gamma globulin

    A protein component of blood plasma containing antibodies effective against certain micro organisms.

  • Gamma ray

    (GA-muh ...)

    A type of high-energy radiation that is different from an x-ray.

  • Gastric

    (GAS-trik)

    Having to do with the stomach.

  • Gastric feeding tube

    (GAS-trik FEE-ding toob)

    A tube that is inserted through the nose, down the throat and esophagus, and into the stomach. It can be used to give drugs, liquids, and liquid food, or used to remove substances from the stomach. Giving food through a gastric feeding tube is a type of enteral nutrition. Also called nasogastric tube and NG tube.

  • Gastroenterologist

    (GAS-troh-EN-teh-RAH-loh-jist)

    A doctor who has special training in diagnosing and treating disorders of the digestive system.

  • Gastrointestinal

    GAS-troh-in-TES-tih-nul

    Refers to the stomach and intestines. Also called GI.

  • Gastrointestinal stromal tumor

    (GAS-troh-in-TES-tih-nul STROH-mul TOO-mer)

    A type of tumor that usually begins in cells in the wall of the gastrointestinal tract. It can be benign or malignant. Also called GIST.

  • Gastrointestinal tract

    (GAS-troh-in-TES-tih-nul trakt)

    The organs that food and liquids travel through when they are swallowed, digested, absorbed, and leave the body as feces. These organs include the mouth, pharynx (throat), esophagus, stomach, small intestine, large intestine, rectum, and anus. The gastrointestinal tract is part of the digestive system. Also called alimentary tract and digestive tract.