The human body consists of several organ systems. Each of the systems requires the involvement of circulating body fluids. There are two principal circulating fluids in our body, namel
Blood is a red coloured viscous and complex tissue fluid. It contained in the heart, and in the blood vessels (arteries, veins and capillaries) of the circulatory system. William Harvey (1728) discovered the circulation of blood
Lymph present within the lymph vessels and the lymphatic organs (e.g., spleen and tonsils)
With the help of blood and lymph, transportation of substances occurs in body. In addition to transportation, blood and lymph have other functions to perform.
