Connective tissue:

Composition of connective tissue:

Ground substance (GAGs, Glycoprotein, Semi fluid gel)

Connective tissues cells:

Migrant cells: move from blood to tissues like neutrophil macrophages, lymphocytes, eosinophils, Plasma cells, mast cell basophils.

Resident cells: Fibrocytes, fibroblast, adipocytes

Connective tissues fibers:

Reticular fibers: Thin, Collagen type III.

Elastic fibers: Thin, small, branching fibers.

Collagen fibers: Tough, thick, fibrous, further classified as:

 

 

Classification of connective tissue: Connective tissues are classified into four following types:

Loose CT: Ground substance is soft & semi fluids, CT Cells are all, Blood Vessels have some, CT fibers are Collagen and Elastic.

Dense CT: Ground substance is the same as loose, but in lesser quantity, CT Cells are Fibroblast, Blood Vessels have some (regular & irregular), CT fibers are Collagen.

Reticular CT: Ground substance is No, CT Cells are Reticular, Blood Vessels have some, CT fibers are Reticular.

Adipose CT: Ground substance is White & Brown adipose cells, CT Cells are Abundant, Blood Vessels, and CT fibers.