Reactive

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Reactive

Reactive (/riˈæktɪv/), from the Latin reactivus, meaning "to return, retreat, or respond", is a term used in various fields of medicine to describe a response to a stimulus or change.

Definition

In a medical context, reactive refers to the way in which cells, tissues, or organs respond to injury or disease. This can include changes in size, shape, or function. Reactive changes are often seen in response to inflammation, infection, or trauma.

Related Terms

  • Inflammation: A process by which the body's white blood cells and substances they produce protect us from infection with foreign organisms, such as bacteria and viruses.
  • Infection: The invasion of an organism's body tissues by disease-causing agents, their multiplication, and the reaction of host tissues to the infectious agents and the toxins they produce.
  • Trauma: A type of damage to the body caused by physical harm from an external source.
  • Stimulus: Something that causes a response in an organ or cell, for example, a change in the environment that is detected by a sensory organ.
  • Disease: A particular abnormal condition that negatively affects the structure or function of all or part of an organism, and that is not due to any immediate external injury.

See Also

External links

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