Passive
Passive (medicine)
Passive (/ˈpæsɪv/; from Latin passivus, "suffered") in the field of medicine refers to a condition or process that occurs without active or direct involvement. This term is often used in various medical contexts, such as passive immunity, passive smoking, and passive movement.
Passive Immunity
Passive immunity is the short-term immunity that results from the introduction of antibodies from another person or animal. This can occur naturally, as in the case of a baby receiving antibodies through the mother's placenta, or artificially, as in the case of receiving an antivenom after a snake bite.
Passive Smoking
Passive smoking is the inhalation of smoke, called second-hand smoke (SHS), or environmental tobacco smoke (ETS), by persons other than the intended "active" smoker. It occurs when tobacco smoke permeates any environment, causing its inhalation by people within that environment.
Passive Movement
Passive movement refers to the movement of a body part by an external force without voluntary muscle activity. This is often used in physiotherapy to maintain or increase the range of motion in a joint.
Related Terms
- Active: The opposite of passive, referring to a condition or process that requires active or direct involvement.
- Immunity: The ability of an organism to resist a particular infection or toxin by the action of specific antibodies or sensitized white blood cells.
- Smoking: The act of inhaling and exhaling the smoke of tobacco or a drug.
- Movement: An act of changing physical location or position.
External links
- Medical encyclopedia article on Passive
- Wikipedia's article - Passive
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