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  • J-Tool

    A device made of rigid, heavy gauge wire and designed to fit through the space between double-swinging equipped with panic hardware.[8]

  • jaundice

    The presence of excessive bile pigments in the bloodstream, which give the skin, mucous membranes, and eyes a distinct yellow color. It is often associated with liver disease.

  • jaw thrust

    Maneuver to open the airway by pushing forward on the mandibles.

  • Jaws of Life

    A Hurst tool. See #Hydraulic spreader.

  • jejunum

    The second portion of the small intestine.

  • Jet siphon

    A venturi appliance used for moving large amounts of water from one reservoir tank to another by pumping a small amount of pressurized water into the jet to create a vacuum to move larger amounts of water.

  • Jet Siphon

    Section of pipe or hard suction hose with a 1 1/2 inch discharge line inside that bolsters the flow of water through the tube. Used between portable tanks to maintain a maximum amount of water in the tank from which Read on! →

  • Job

    Northeast US Firefighter slang for structure fire

  • Jockey pump

    A small pump connected to a fire sprinkler system.

  • Jockey Pump

    Small-capacity, high pressure pump used to maintain constant pressure on the fire protection system; often used to preven the main pump from starting unnecessarily

  • Jockey Pump

    Small-capacity, high pressure pump used to maintain constant pressure on the fire protection system; often used to preven the main pump from starting unnecessarily

  • joint

    The point at which two or more bones articulate or come together.

  • Joists

    Horizontal structural members used to support a ceiling or floor. Drywall materials are nailed or screwed to the ceiling joists, and the sub-floor is nailed or screwed to the floor joists.

  • jugular notch

    Top border of the sternum.

  • jugular veins

    Veins that return blood from the head, neck, and face to the superior vena cava.

  • Jump Seat

    Seats on a fire apparatus that are behind the front seats.

  • Jumping-sheet

    The sheet held by a group of firefighters on which people caught in a burning building can jump on to.

  • junctional rhythm

    A dysrhythmia arising from ectopic foci in the area of the AV junction. It often shows an absence of the P wave, a short P-R interval, or a P wave appearing after the QRS complex.

  • Junior firefighter

    (US) a young adult between the ages of 14-18 that learns the basics of firefighting from firefighters usually in a volunteer fire company

  • Jurisdiction

    (1) Legal authority to operate or function.

  • Jurisdiction

    (1) Legal authority to operate or function. (2) Boundaries of a legally constituted entity