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  • visceral

    Pertaining to organs of the body.

  • visceral pleura

    The outer, membranous covering of the lungs.

  • vital capacity

    The volume of air that can be forcefully exhaled from the lungs following a full inhalation.

  • vital signs

    Measurements of body functions, including pulse, respirations, and blood pressure.

  • vitreous fluid

    A jellylike, transparent substance filling the inside of the eye.

  • vocal cords

    Paired structures in the larynx whose vibrations produce sound.

  • Voids (building)

    Enclosed portions of a building where fire can spread undetected.

  • volar

    Pertaining to the palm side of the arm.

  • Vollie

    A volunteer firefighter.

  • Voltage

    Electrical force that causes a charge (electrons) to move through a conductor; units of electric potential

  • Voltage

    Electrical force that causes a charge (electrons) to move through a conductor; units of electric potential

  • Voltmeter

    Device used for measuring the voltage existing on an electrical system.

  • volume expander

    An intravenous fluid that stays in the vascular space, usually a colloid or crystalloid.

  • voluntary commitment

    A situation in which a patient signs himself into a psychiatric facility of his own free will.

  • voluntary muscles

    The muscles that function under the conscious control of the brain.

  • Volunteer fire department

    An organization of part-time firefighters who may or may not be paid for on-call time or firefighting duty time, but who in nearly all states are held to the same professional training standards and take the same examinations to advance Read on! →

  • Volute

    Spiral, divergent chamber of a centrifugal pump in which the velocity energy given to water by the impeller blades is converted into pressure.

  • vomiting

    A forceful, active expulsion of stomach contents through the mouth (as opposed to regurgitation, which is passive).

  • vomitus

    The matter ejected from the stomach by vomiting.

  • vulnerable period

    An interval during the relative refractory period of the ventricular repolarization, corresponding to the upstroke of the T wave, near its peak, in which an ectopic impulse or an unsynchronized current can produce ventricular tachycardia or fibrillation.

  • vulva

    The external parts of the female genitalia.