humoral - meaning and definition. What is humoral
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What (who) is humoral - definition

ASPECT OF IMMUNITY THAT IS MEDIATED BY MACROMOLECULES FOUND IN EXTRACELLULAR FLUIDS SUCH AS SECRETED ANTIBODIES, COMPLEMENT PROTEINS, AND CERTAIN ANTIMICROBIAL PEPTIDES (CONTRASTS WITH CELL-MEDIATED IMMUNITY)
Humoral immune system; Humoral immune response; Humoral; Antibody-mediated immunity; Antigens, t-independent; Alexin; Humoral Immune System; Humoral immune reactions; Antibody mediated immunity; Antibody mediated immune response; Antibody-mediated immune response; Antibody-mediated system; Antibody mediated system; Antibody mediated immune system; Antibody-mediated immune system; Humoral response; Humoural immunity
  • [[B cell]] activation is a large part of the humoral immune response.
  • Step 1: A macrophage engulfs the pathogen. Step 2: The macrophage then digests the bacterium and presents the pathogen's antigens. Step 3: A T helper cell binds to the macrophage and becomes an activated T helper cell. Step 4: The activated T helper cell binds to a B cell in order to activate the B cell. Step 5: When the B cells are activated, some B cells turn into plasma cells and are released in the blood, while other B cells become B memory cells that quicken response for a second exposure. Step 6: Plasma cells then secrete antibodies, which bind to antigens to fight the invading pathogens.

Humoral         
·adj Pertaining to, or proceeding from, the humors; as, a humoral fever.
humoral         
['hju:m(?)r(?)l]
¦ adjective
1. Medicine (of immunity) involving the action of circulating antibodies. Often contrasted with cell-mediated.
2. historical relating to the four bodily humours.
Origin
ME: from OFr., or from med. L. humoralis, from L. humor (see humour).
Humoral immunity         
Humoral immunity is the aspect of immunity that is mediated by macromolecules - including secreted antibodies, complement proteins, and certain antimicrobial peptides - located in extracellular fluids. Humoral immunity is named so because it involves substances found in the humors, or body fluids.

Wikipedia

Humoral immunity

Humoral immunity is the aspect of immunity that is mediated by macromolecules - including secreted antibodies, complement proteins, and certain antimicrobial peptides - located in extracellular fluids. Humoral immunity is named so because it involves substances found in the humors, or body fluids. It contrasts with cell-mediated immunity. Humoral immunity is also referred to as antibody-mediated immunity.

The study of the molecular and cellular components that form the immune system, including their function and interaction, is the central science of immunology. The immune system is divided into a more primitive innate immune system and an acquired or adaptive immune system of vertebrates, each of which contain both humoral and cellular immune elements.

Humoral immunity refers to antibody production and the coinciding processes that accompany it, including: Th2 activation and cytokine production, germinal center formation and isotype switching, and affinity maturation and memory cell generation. It also refers to the effector functions of antibodies, which include pathogen and toxin neutralization, classical complement activation, and opsonin promotion of phagocytosis and pathogen elimination.