Category: G

  • Gauge

    A device for measuring the size, capacity, amount, or power of an object or substance.  

  • Gating

    In radiology, a procedure used to reduce image artifacts caused by involuntary motion.  

  • Gate theory

    The hypothesis that painful stimuli may be prevented from reaching higher levels of the central nervous system by stimulation of larger sensory nerves. This is one of the proposed explanations of the action of acupuncture and of transcutaneous electrical nerve stimulation (TENS) units.  

  • Gatekeeping

    In medical care, deciding the allocation, limitation, or rationing of services. Decisions are based on a variety of factors including need; cost; the potential for success of the proposed therapy; and the availability of facilities, staff, and equipment.  

  • Gatch bed

    An adjustable bed that provides elevation of the back and the knees. All hospital beds do this, using a crank or electrical motor.  

  • Gastrulation

    The development of the gastrula in the embryo.  

  • Gastrotome

    An instrument formerly used for incising the stomach or abdomen.  

  • Gastrothoracopag

    Congenitally deformed twins joined at the stomach and thorax.  

  • Gastrostoma

    A fistula, or a passageway created from the stomach through the abdominal wall.  

  • Gastrostenosis

    Contraction (stenosis) of the stomach.