The human body does not handle excessive blood loss well. Therefore, the body has ways of
protecting itself. If, for some unexpected reason, sudden blood loss occurs, the blood
Platelets are irregularly-shaped, colorless bodies that are present in blood. Their sticky
them, along with other substances, form clots to stop bleeding.
When bleeding from a wound suddenly occurs, the platelets gather at the wound and attempt
block the blood flow. The mineral calcium, vitamin K, and a protein called fibrinogen help
platelets form a clot.
A clot begins to form when the blood is exposed to air. The platelets sense the presence
of air and
begin to break apart. They react with the fibrinogen to begin forming fibrin, which
threads. The fibrin threads then begin to form a web-like mesh that traps the blood cells
within it. This
mesh of blood cells hardens as it dries, forming a clot, or "scab."
Calcium and vitamin K must be present in blood to support the formation of clots. If your
lacking these nutrients, it will take longer than normal for your blood to clot. If these
missing, you could bleed to death. A healthy diet provides most people with enough
minerals, but vitamin supplements are sometimes needed.
A scab is an external blood clot that we can easily see, but there are also internal blood
bruise, or black-and-blue mark, is the result of a blood clot. Both scabs and bruises are
lead to healing. Some clots can be extremely dangerous. A blood clot that forms inside of
vessel can be deadly because it blocks the flow of blood, cutting off the supply of
oxygen. A stroke
is the result of a clot in an artery of the brain. Without a steady supply of oxygen, the
function normally. If the oxygen flow is broken, paralysis, brain damage, loss of sensory
or even death may occur.