Describe the process of clotting of blood
Blood clotting or coagulation is a biological process that stops bleeding. It's vital that blood clots when we have a surface injury that breaks blood vessels. Clotting can prevent us from bleeding to death and protect us from the entry of bacteria and viruses. Clots also form inside our body when a blood vessel is injured. Here they prevent blood loss from the circulatory system.
Our body can both make clots and break them down once they've done their job. In most people, a healthy balance is maintained between these two activities. In some people abnormal blood coagulation occurs, however, and their body may not be able to break clots down. A large clot inside a blood vessel is potentially dangerous because it can block blood flow in the vessel. Internal clots that form without an obvious injury or ones that travel through blood vessels are also dangerous.
Coagulation of blood is a fascinating and complex process that involves many steps. Proteins made by the liver and sent into the bloodstream are an essential part of the process. The proteins circulate around the body in our blood, ready for action at any time. An external or internal injury is the trigger that activates the proteins and sets the blood clotting process in motion.