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.
The formation and dissolution of blood clots in regulated by hemostasis. Fibrin combines with platelets and blood cells to create a clot, which seals off ruptured blood vessels. Hemostasis stops the bleeding after an injury to the blood vessels by changing the blood to a solid. When platelets and red blood cells in the bloodstream help clots to form. Blood changes from liquid to solid as it coagulates.