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Blood (Distribution (Transports nutrients from digestive tract to body,…
Blood
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Steps To Blood Clotting
Vascular Spasm- Smooth muscle drastically contracts near the site of injury so the blood flow to the area will decrease
Platelet Plug Formation- Platelets begin to adhere to the collagen fibers and endothelial lining of the ruptured vessel. As platelets stick together they form the platelet plug.
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Coagulation
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Thrombin converts fibrinogen to final fibrin clot. Fibrin is a thread like protein that forms a mesh and prevents anything from going through a damage vessel.
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Leukocytes (WBC)
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Two main categories- granulocytes, agranulocytes
Helps fight off infections by removing debris, toxins, and infections agents.
Hemostasis
The process of forming a blood clot (coagulation) is needed in order to prevent continued blood loss from damaged tissues or vessels.
Platelets start coagulation, forming a platelet plug at the area of damage
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Hematopoiesis- the formation of blood cells and platelets, which form in the bone marrow. Can become 2 types of blood cells
Myeloid stem cells- platelets, erythrocytes, and 4 of the leukocytes come from this branch
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Rh
When someone has their blood typed they will receive their Rh result which is either positive or negative.
Thrombopoietin- hormone produced by liver and kidneys that stimulate hemocytoblasts to develop into megakaryocytes
Megakaryocytes break off pieces into the bloodstream, which are platelets.
Erythropoietin- hormone produced in kidneys that stimulate the hemocytoblasts to divide into erythroblasts, then developing into erythrocytes