For any organism to survive flow of blood is essential. Blood flows to and fro from the heart transporting oxygen and other nutrients to various organs of the body. Our heart pumps blood via arteries which carries oxygenated blood to all parts which is returned back in the form of deoxygenated (impure) blood from body parts through veins. Veins send it back to the heart for purification and this process goes on as long as you are alive.
Blood clots occur when normal blood flow is interrupted. Blood vessels carry blood and clotting of blood is a vital process for body metabolism. It is the clotting process that saves you from heavy blood loss during accidents or cut injury. Blood platelets are responsible for clotting of blood. Blood clots are described as thrombus in medical terms. Blood clots are formed as routine repairing process of the body which is very much needed for metabolism. But when clotting of blood occurs unexpectedly it can cause complications.
Depending on the place of blood clot it is treated as mild or serious consequences. Clots that are formed in the veins that supply blood to the brain, lungs and kidneys are very serious and needs immediate medical attention. Blood clots can be diagnosed using radiologic test and ordinary blood clots can be treated using anti-coagulants. Three important materials are included in every blood cell. They are categorized as red blood cells (which carry oxygen to all the cells), white blood cells (which prevent infection) and platelets (that are responsible for clotting of blood).
How does clotting occur?
Whenever there is any injury or cut in your body, blood platelets are immediately rushed to the injured area. This would release certain chemicals to initiate the clotting process which takes place as a series of reaction. Fibrin, a protein is produced during this process that combine together to form a mesh leading to blood clot. Thus heavy blood loss is prevented by this process.