The circulatory system consists of one heart, five liters of blood, and approximately 96,000 kilometers of blood vessels, responsible for transporting nutrients and waste throughout the body.

white blood cells, platelets and plasma. Blood vessels - Tubes that carry blood around the body. Cardiovascular system - Another name for the circulatory system, see below. Circulatory system - A ...

Save guides, add subjects and pick up where you left off with your BBC account. blood a pump (the heart) to push the blood around the body a system of tubes to contain the blood (arteries, veins ...

The systemic circulatory system is the main blood circulatory system that transports blood to the organs, tissues, and cells throughout the body. The pulmonary circulatory system moves blood ...

Red blood cells, which are part of the circulatory system, deliver oxygen to cells throughout the body and carry away carbon dioxide. Platelets are cell fragments that form clots and stop bleeding.

and circulatory system work. A typical blood oxygen level for a healthy person ranges between 95% and 100%. This means that nearly all of the red blood cells are carrying oxygen to your cells and ...

cells and body tissues die. The blood flows around the body in blood vessels (tubes) called arteries, veins and capillaries. This is the circulatory system. The heart pumps the blood through the ...

Blood is three times thicker than water and the average person has about five litres (or nine pints) of it in their body. Of the 50-75 trillion cells in the body, half are red blood cells.

In each cubic millimetre of blood, there are more than five million red blood cells, thousands of white cells and 250,000 to 450,000 platelets for blood clotting. Every second, 2.5 million new red ...