MICROANATOMY

Detailed explanation-1: -Connective tissue cells are typically divided into two types, fixed cells and wandering cells. Fibrocytes, or fibroblasts and fat cells(adipocytes) are fixed cells, where as macrophages, monocytes, lymphocytes, plasma cells, eosinophils and mast cells are wandering cells.

Detailed explanation-2: -Human lung mast cells eluted throughout the procedure indicating heterogeneity of mast cell diameters. In seven individual lung elutriations, the mean histamine content ranged from 2.5 +/-0.5 pg/mast cell for the smallest diameter mast cells (8-10 microns) to 10 +/-2.5 pg/mast cell for the largest (16-20 microns).

Detailed explanation-3: -Mast cells are found throughout the body in loose connective tissue.