Category: O

  • Orientia tsutsugamushi

    An intracellular parasite, formerly known as Rickettsia tsutsugamushi, that is the causative agent of scrub typhus. It is transmitted to humans by the bites of infected trombiculid mites, which prey in the wild on rodents.  

  • Organ system

    A group of structures or organs related to each other and performing certain functions together (e.g., the digestive system).  

  • Organ-specific

    Originating in a single organ or affecting only one specific organ.  

  • Organ recovery

    The surgical removal of a body part from one person to be used in organ transplantation in another patient.  

  • Organ procurement organization

    An institution that facilitates organ transplantation by obtaining cadaveric tissues and organs for use in living patients with end-stage diseases of the heart, kidneys, liver, and lungs.  

  • Organ perfusion system

    A mechanical device equipped to supply metabolic, oxygen, and electrolyte needs to an organ obtained from a cadaver or donor in order to keep it viable for transplantation. The organ and the perfusion solution pumped through it can be kept at the ideal temperature for organ survival. They can be transported as necessary.  

  • Organotropism

    The attraction or affinity of chemicals or biological agents for body organs or tissues.  

  • Organotrope

    Having affinity for tissues or certain organs.  

  • Organopexy

    The surgical fixation of an organ that is detached from its proper position.  

  • Organonomy

    The laws regulating the biological processes of living organisms.