mast cells
mast cells Large amoeboid cells that are found in vertebrate connective tissue. They may be connected with the deposition of fat. In certain situations they produce histamine and serotonin, responsible for allergy symptoms. They also produce heparin, an anticoagulant, which may prevent fibrin from forming clots in the intercellular spaces.
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Immune System , Definition
The immune system is composed of cells, organs, tissues, and molecules that protect the body from disease. The term "immunity" comes from… Parenchyma , parenchyma
1. A plant tissue consisting of roughly spherical relatively undifferentiated cells, frequently with air spaces between them. The cortex a… desmosome , desmosome (macula adherens) A patchlike junction found between adjacent cells in epithelial tissues that helps strengthen the tissue by binding the c… Macrophage , macrophage A large phagocytic cell (see phagocyte) that can ingest pathogenic microorganisms (e.g. bacteria, protozoa) or cell debris and forms part… Plasma Membrane , Plasma membranes envelop all plant and animal cells and all single-celled eukaryotes and prokaryotes , separating them from their environments. Struc… Adherens Junction , adherens junction A cell junction that is commonly observed in epithelial (see EPITHELIUM) cells (e.g. those lining the intestine and those in cardia…
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mast cells