What parts of blood assist in clotting?

Answer 1

People can be genetically predisposed to having blood clots, or thombosis (single) or thombi (multiple).

However, most incidents of thrombosis relate to a combination of lifestyle factors, including:

1. prolonged immobility - in a car, in an airplane, or due to other illness or disability. People who sit for long hours or who are bedridden have a higher risk of developing thrombi.
2. decreased fluid intake - which thickens blood
3. smoking - which thickens blood
4. underlying narrowing of blood vessels - due to high fat intake, for example

A blood clot begins when the one or more RBCs become "sticky". As the RBCs travel through smaller veins, especially in the legs, the stickiness makes one or more adhere to the vessel's wall, like a pimple. As more sticky RBCs pass over the pimple, some of them stick to the already stuck RBCs, making a sort of speed bump in the vessel. This process of stickiness continues, making the clot grow larger and longer. If noticed early, the clot remains small(ish), more like a misshapen ball. But many times, the clot just keeps adding RBCs to the mass. As it fills the vessel, it begins to make a longer clot typically following the blood's direction of flow. So a clot that forms in the calf grows longer up to the knee... up to the thigh... and so on. These are often referred to generically as "clothesline type" clots. They are one long mass that nearly completely obstructs blood flow in that area.

Swelling is one of the first symptoms people notice, along with pain in the calf. Redness and warmth follow, especially when the limb is in a dependent position. Swelling can increase dramatically when standing because the blood cannot force its way past the clot. Pulmonary embolism (PE) can quickly follow.

Answer 2

Blood contains, in addition to red blood cells and white blood cells, tiny structures called platelets. These platelets pile up around the wound, then combine with other substances in the blood plasma (liquid) and chemicals in the damaged tissue to form long sticky threads called fibrin.

Fibrin threads crisscross each other and form a kind of dam to trap the blood. This dam is a solid plug, or clot. A clot that forms over a wound on the surface of your skin is called a scab.

Answer 3

to stop or minimises blood loss at the site of damaged blood vessels

Answer 4

platelets i.e. thrombocytes participate in clot formation.

fibrinogrn is converted into fibrin threads by 13 clotting factors.......

Answer 5

calcium plays an important role in blood clotting.

Answer 6

Platelets and at least eight [other] coagulation factors in the plasma.

Answer 7

platelets & fibrinogen

Answer 8

platelets rbc

Answer 9

platelets