Describe the composition of the matrix in which connective tissue cells are embedded. Describe the tasks carried out by the cells of connective tissue.
Connective tissues contain a variety of cells embedded in a matrix of fibers and ground substance, which consists of water, proteins, carbohydrates, and lipids. The cells of connective tissues carry out diverse tasks. Fibroblasts produce the proteins, through secretion, from which the fibers of connective tissues are made. White blood cells fight infection. Macrophages help during inflammation: Irregularly shaped, these cells can engulf particles such as bacteria or dead red blood cells and move by amoeboid motion. Fat cells are highly specialized for the storage of fat: Connective tissue that has a high concentration of fat is called adipose tissue. Mast cells secrete two substances: heparin which prevents blood clotting and histamine which increases the permeability of capillary walls.
