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Humoral theory

Definition

noun

An ancient Greek theory stating that the body is composed of four basic humors such as black bile, yellow bile, phlegm, and blood that were used as a basis to determine the health of an individual. According to this theory, the four humors have to be in balance in order to be healthy. Otherwise, an excess or deficit on one of them results in disease or disability in the personality or physical health of an individual.


Supplement

This theory was related and likened to the theory of the earth having four elements such as earth, fire, water and air in which balance in these elements allow for human life.

Related to this theory is the theory of temperament. (see: temperament theory)


Word origin: from the Latin umore = fluid

Also called: humoral doctrine, humoralism, humorism.

Synonym: fluidism.


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Re: Immunology: Th1/Th2 vs cellular/humoral responses

... assessment that CD4+ T cells are not direct effectors in the way a classical CD8+ T cell is thought to be. This was certainly the long-held theory, but not so recent observations have cast confusion onto that neat package. Various groups have indeed described CTL-like function in CD4+ cells. ...

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by biohazard
Thu Aug 25, 2011 9:52 am
 
Forum: Cell Biology
Topic: Immunology: Th1/Th2 vs cellular/humoral responses
Replies: 10
Views: 43370

Re: Immunology: Th1/Th2 vs cellular/humoral responses

... assessment that CD4+ T cells are not direct effectors in the way a classical CD8+ T cell is thought to be. This was certainly the long-held theory, but not so recent observations have cast confusion onto that neat package. Various groups have indeed described CTL-like function in CD4+ cells. ...

See entire post
by arma9eddon
Wed Aug 24, 2011 8:07 pm
 
Forum: Cell Biology
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Replies: 10
Views: 43370


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