Blood is the most specialized connective tissue.
Volume of blood in a healthy average adult is about 5-6 L.
Human blood is red in color because of respiratory pigments HEMOGLOBIN .
Main functions of blood
1.Transport of oxygen and carbon dioxide [ respiratory gases]
2. Transport of nutrients , metabolic waste products and hormones and etc
3. Maintain the body temperature
Why blood is considered as connective tissue
.Blood tissue has a mesoderm origin
.Presence of matrix ,cells and fibers
.Provide connection between body organs
Why blood is considered as the most specialized connective tissue
.Matrix is a fluid
.Blood cells don't secret matrix and fibers
.Fibers
are formed during blood clotting