Question

Why is blood known as the fluid connective tissue ?

Answer 1

1. Blood is a connective tissue. The cells of connective tissue are embedded in the homogeneous, intercellular substance called matrix of the tissue.
2. In case of blood, the matrix is liquid or fluid in nature, called plasma. Due to the fluid matrix, blood is a fluid. The blood cells are present in the plasma.
3. The liquid state of blood can be contributed to plasma as it makes up ~55% of blood. It is pale yellow in colour and when separated, it consists of salts, nutrients, water and enzymes.
4. Therefore, blood is a fluid connective tissue composed of 55% plasma and 45% formed elements including WBCs, RBCs, and platelets. Since these living cells are suspended in plasma, blood is known as a fluid connective tissue and not just fluid.