Category: G

  • Gastroenteritis

    Inflammation of the mucosal lining of the stomach and/or small or large intestine, normally resulting from infection. Inflammation of the stomach and small intestines. It is more frequently infectious than simple gastritis and is often accompanied by fever and general malaise. Inflammation of the gastrointestinal tract, associated with nausea, pain and vomiting. A generalized infection…

  • Gastric inhibitory peptide (GIP)

    Ahormone secreted by the mucosa of the duodenum and jejunum in response to absorbed fat and carbohydrate which stimulates the pancreas to secrete insulin. Also known as glucose- dependent insulinotropic polypeptide.  

  • Gallstones (cholelithiasis)

    Concretions composed of cholesterol, bile pigments, and calcium salts, formed in the bile duct of the gallbladder when the bile becomes supersaturated. A solid or semi-solid body in the gall bladder or bile duct. The presence of stones in the gallbladder. Hard, calcium compounds formed in the gallbladder or bile duct, gall. A condition in…

  • Gall-bladder

    The organ situated in the liver which stores the bile formed in the liver before its secretion into the small intestine.  

  • Galactose (gal)

    A six-carbon monosaccharide, differing from glucose only in position of the hydroxyl group on carbon-4. A 6-carbon sugar obtained by hydrolysis of lactose. A monosaccharide occurring in both levo (L) and dextro (D) forms as a constituent of plant and animal oligosaccharides (lactose and raffinose) and polysaccharides (agar and pectin). Galactose is also known as…

  • Galactans

    Polysaccharides composed of galactose derivatives.  

  • Gynophobia

    The fear of women.  

  • Guilt

    Emotion resulting from doing what one conceives of as wrong, thereby violating superego precepts; it results in feelings of worthlessness and at times the need for punishment. Also may be a symptom of several psychiatric disorders, including major depression. A powerful emotion. Results from remorse over events that have already occurred. A painful, inwardly directed…

  • Guanfacine

    A nonstimulant alpha2a-adrenergic receptor agonist originally developed to treat high blood pressure (brand name tenex). An extended-release formulation (brand name intuniv) of guanfacine was approved in 2007 for use in the treatment of attention-deficit/hyperactivity disorder (ADHD).  

  • Guanethidine

    An antihypertensive medication that may cause depression and delirium. The brand name ismelin was discontinued by the manufacturer in 2009, and no generics are currently available. A drug that is used to reduce high blood pressure. It is administered by mouth; common side-effects are diarrhea, faintness, and dizziness.