(a) Which is the most widely distributed connective tissue in the animal body ? What is its composition ?
(b) List atleast three types of cells present in the matrix of such connective tissue with one function of each.

Explanation

(a) Aerolar connective tissue. It consists of matrix, numerous fibres (white fibres, yellow fibres and reticular fibres ) and cells.
(b) (i) Fibroblasts - They secrete matrix of areolar tissue.
(ii) Macrophages - They engult microbes, foreign particles and damaged cells.
(iii) Mast cells - They produce heparin and histamine.