fibrinogen
Copper
Blood clotting is also known as coagulation. On average, it occurs within 3 to 6 minutes of a blood vessel being damaged. There are two main ways for blood clotting to occur: the intrinsic pathway, and the rapid extrinsic pathway. Whichever pathway occurs the final result is always that blood plasma turns into a gel as a result of being combined with fibrin, and this forms a blood clot.
Blood clotting does occur for blood in uninjured blood vessels due to its insulation from air. Our bodies produce what is called heparin that prevents clotting of blood in vessels. Heparin allows our lungs to transfer oxygen to our blood. When blood is exposed to air it clots so heparin allows the blood to come in direct contact with the air we breath without clotting.
The protein fibrin is found in the blood and it has a necessary role in blood clotting.Thrombin, another protein, is found in blood. It is an enzyme that speeds up the rate of blood clotting. Thrombin and fibrin work hand in hand during the process of blood clotting.
Injury causes damaged tissue cells to produce prothrombin activator. This, along with a clotting factor produced by the sticky platelets (cell fragments) at the damaged site, cause prothrombin + calcium to make thrombin (blood protein). All the while fibrinogen is stimulated to make fibrin (blood protein). The fibrin ensnares RBCs to form the clot with the platelets.All factors have to be there for the clotting to occur. Lack of any of them causes bleeding disorders.
Air and blood in a medical setting, such as dialysis are not supposed to mix. When blood and air mix, the clotting process begins to occur.
Blood is normally a liquid found in veins. When an injury occurs and blood needs to clot, three processes occur. The first process in the creation of prothrombinase which occurs when liquid blood comes in contact with a foreign body or injured tissue. The second process is prothrombin which is a plasma protein that is formed in the liver. The third process us fibrinogen which is also synthesized by the liver. Fibrinogen forms the threads that bind the clot.
Other choices because I couldn't add them: D. The blood pressure of the individuals would increase. E. Fluid would accumulate in the body.
Irregularly shaped blood cells can cause problems with clotting and proper blood flow. Think of the sickle cell disease. Although you're asking about irregularly sized and not irregularly shaped blood cells, I would assume that similar problems would occur. If the blood cells were too large to allow proper and free movement I should think that clotting and the risks/pains associated with abnormal blood clotting could occur. It really depends on how large we're talking.
where plasma occur on the earth
Plavix keeps the platelets in your blood from coagulating (clotting) to prevent unwanted blood clots that can occur with certain heart or blood vessel conditions.
The organism not only damages the blood vessels by causing them to leak, but also causes clotting inside the vessels.