BLOOD -
- Blood is a mobile connective tissue composed of a fluid, the plasma and the cells, the blood corpuscles.
- Blood is basis of life.
- Blood is the softest tissues in the body.
- Fluids outside the cells are generally called extracellular fluids (ECF).
- Blood forms about 30-35 percent ofthe ECF.
- The volume of blood in an adult person of 70 kg weight is about 5.5 litres.
- It is a slightly alkaline fluid having pH 7.4. pH of blood in arteries is more than in veins.
COMPOSITION -
Blood is composed of a watery fluid called plasma and floating bodies termed formed elements (e.g., blood corpuscles).