IMMUNE SYSTEM Meaning and
Definition
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The immune system is a complex network of organs, tissues, cells, and molecules that defend the body against harmful pathogens, such as bacteria, viruses, fungi, and parasites, as well as other foreign substances that may pose a threat to health. Its primary function is to recognize and destroy these invading microorganisms or neutralize their toxic byproducts.
The immune system consists of two main components: the innate immune system and the adaptive immune system. The innate immune system forms the first line of defense and includes physical barriers like the skin and mucous membranes, as well as immune cells like macrophages and dendritic cells. These cells work together to quickly recognize and eliminate any potential threats.
The adaptive immune system is the second line of defense and provides a targeted and specific response to pathogens. It includes specialized cells called lymphocytes, such as B cells and T cells, which can recognize and remember specific pathogens or foreign molecules. This memory response allows the adaptive immune system to produce a more rapid and robust defense upon subsequent encounters with the same pathogen.
The immune system also plays a crucial role in distinguishing between harmful substances and the body's own healthy cells and tissues. Failure to properly regulate immune responses can result in conditions like allergies, autoimmune diseases, or immunodeficiency disorders.
Overall, the immune system is a vital component of the body's defense mechanisms, acting as a sophisticated security system to protect against infectious agents and maintain overall health.
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A combination of antigen or cells with amboceptor and complement.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Top Common Misspellings for IMMUNE SYSTEM *
* The statistics data for these misspellings percentages are collected from over 15,411,110 spell check sessions on www.spellchecker.net from Jan 2010 - Jun 2012.
Other Common Misspellings for IMMUNE SYSTEM
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Etymology of IMMUNE SYSTEM
The word "immune" in "immune system" is derived from the Latin word "immunis", which means "exempt" or "free from". The root of "immunis" is "munus", which translates to "duty" or "obligation". In ancient Rome, "immunis" referred to someone who was exempted from certain duties or obligations, such as taxes or military service.
The term "immune system" gained popularity in the late 19th century as the understanding of the body's defense mechanisms against diseases improved. It was used to describe the collective systems and processes that protect the body from infections and diseases. Today, the term "immune system" is widely used in the field of immunology to refer to the complex network of cells, tissues, organs, and molecules that work together to defend the body against pathogens.
Similar spelling words for IMMUNE SYSTEM
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