Electron microscopy of loose, dense regular, dense irregular, and embryonic connective tissue. The fixed and transient cells of connective tissue.
Connective tissue cells refer to the cells that are found in the subendothelial connective tissue of the intima and in the adventitia, where they surround blood vessels, lymphatics, and nerves. AI generated definition based on: Haschek and Rousseaux's Handbook of Toxicologic Pathology (Third Editio...
Although mast cells have been implicated in mediating anti-tumor activity, the kinetics, mechanism(s), and suspectibility of different tumors to mast cell-mediated cytotoxicity have not been defined. Rat connective tissue mast cells (CTMC) of ≥99% purity were investigated in vitro and found to...
Connective tissue - Migrating Cells, Fibers, Matrix: In addition to the relatively fixed cell types described above, there are free cells that reside in the interstices of loose connective tissue. These vary in their abundance and are free to migrate thr
Connective tissue is composed of fibroblasts and other cells and an extracellular matrix (ECM) of various protein fibers, all of which are surrounded by watery ground substance. In all types of connective tissue the extracellular volume exceeds that of the cells. TABLE 5–1 Functions of cells in...
Dense connective tissue can be characterized as regular or irregular on the basis of fiber arrangement. Among the cells that may be found in connective tissue are fibroblasts (flattened cells that produce and maintain the fibers and ground substance), macrophages (phagocytic cells), mast cells (...
Some tissues have specialized cells that are not found in the others. The matrix in connective tissues gives the tissue its density. When a connective tissue has a high concentration of cells or fibers, it has proportionally a less dense matrix....
Cell Types in Connective Tissue Numerous cell types are found in connective tissue. Fibroblasts, histiocytes, plasma cells, and mast cells are cell types that are found in loose connective tissue. Fibroblast A fibroblast is a connective tissue cell derived from mesenchyme. Fibroblasts produce collagen...
(now known asglycosaminoglycans; complex high-molecular-weightcarbohydratesthat form the chiefconstituentof theground substancebetween the connective tissue cells and fibres). The mucopolysaccharidoses includeHurler syndrome,Scheie syndrome,Hunter syndrome,Sanfilippo syndrome,Morquio syndrome, andMaroteaux-Lamy...
These cells are mononuclear phagocytes that are macrophages with characteristic phagocytic activity producing NaHA, which is excreted into their immediate intercellular matrix environment. The cells are embedded on the edge of the collagen network of the synovial membrane. Rheumatoid tissue is also ...