Give a brief account of the cells of areolar tissue.

Explanation

Areolar tissue: It is one of the most widely distributed connective tissue in the body. It forms the packing tissue in almost all the organs. Areolar tissue forms subcutaneous layer of the skin. It has cells and fibres. Cells of the areolar tissue are fibroblasts, mast cells, macrophages, adipocytes and plasma cells.
1) Fibroblasts are the most common cells which secrete fibres. The inactive cells are called fibrocytes.
2) Mast cells secrete heparin (an anticoagulant), histamine, bradykinin (vasodilators), and serotonin (vasoconstrictor). Vasodilators cause inflammation in response to injury and infection.
3) Macrophages are amoeboid cells, Phagocytic in function and act as internal scavengers. They are derived from the monocytes of blood. "Tissue fixed macrophages. are called histiocytes and others are .wandering macrophages..
4) Plasma cells are derived from the B-lymphocytes and produce antibodies.
5) Adipocytes are specialized cells for the storage of fats.