Accurate maple tree identification can sometimes be an issue if you are concerned about the health and care of your tree, but most maples normally are subject to similar pests and diseases, and most require similar care.
The lack of platelets and proteins to form a clot prevents the  clotting of blood. This can also happen if there are any bleeding  disorders that prevent clot formation.Edit.onfidence votes 210. There are many things people can do to prevent blood from clotting inside the blood vessels. One of those is making sure you don't sit/laydown very long.
Blood Clotting. When blood vessels are cut or damaged, the loss of blood from the system must be stopped before shock and possible death occur. This is accomplished by solidification of the blood, a process called coagulation or clotting. 1  a plug of platelets enmeshed in a. 2  network of insoluble fibrin molecules. a plug of platelets enmeshed in a. 2  network of insoluble fibrin molecules. 3  calcium ions (Ca 2+)(which is why blood banks use a chelating agent to bind the calcium in donated blood so the blood will not clot in the bag). 4  about a dozen other protein clotting factors.