Human Excretory System

L.S. of Kidney of Man

What is Excretion and Excretory System? The process of removal of chemical waste (mainly nitrogenous) from the body is known as excretion and the organ system involved is called Excretory System. Excretion plays an important role in maintaining the homeostatic condition of the body. Excretory Products CO2 and Water Nitrogenous Waste Products Nitrogen containing waste … Read more

Human Circulatory System

Human Circulatory System- The Heart

What is Circulatory System? The Human Heart Pericardium and wall-layers of the heart Structure of Human Heart Blood vessels entering and leaving the heart, their apertures and valves Blood vessels entering the heart Blood vessels leaving the heart Heartbeat Circulation of blood through the heart Double Circulation Double Circulation- The Blood has to pass atwice … Read more