Blood clotting is a homeostatic response.   When clotting is poor, even a slight injury to a blood vessel may lead to severe blood loss. When clotting is excessive, small blood vessels in critical places in the body can become clogged leading to clots.  Excessive bleeding or excessive clotting both can be dangerous.   – Describe the main stages in the formation of a blood clot and evaluate the importance of specific factors example platelets, vitamin K, air and blood proteins     Injured tissue – exposure of endothelial cells Narrowing (constriction) of blood vessels Activity of platelets Activity of clotting factors

Q: Fill in the Blank, The pathway for blood clotting that is initiated by chemicals released by damaged…

A: Blood coagulation is a vital mechanism that prevents unnecessary bleeding in an injury to the blood…

Q: Diagram the clotting pathway beginning with prothrombin?

A: The accumulation of the blood due to internal bleeding in this tissue is known as a hematoma. Red…

Q: Platelets are capable of which of the following? Select all that apply.   activate clotting enzymes…

A: Platelets:- Platelets are tiny blood cells that help your body form clots to stop bleeding.…

Q: Anti-A Anti-B Anti-RH If the patient is AB-, they can receive blood from: If the patient is O+, they…

A: ABO blood group system was discovered by Karl Landsteiner in 1901. There are 29 blood group system,…

Q: Explain the difference between the four primary blood types that are described by the ABO system. Be…

A: INTRODUCTION ABO blood grouping The ABO blood grouping was discovered by Karl Landsteiner.

Q: How would this affect the recipient (Assume the transfusion has no effect on the level of plasma in…

A: Red blood cells Red blood cells are also called as blood corpuscles, haematids, erythroid cells or…

Q: What causes platelets to adhere to the wall of a broken vessel?   exposure of collagen fibers…

A: Hemostasis is the process through which the body prevents wounded blood vessels from bleeding. Too…

Q: All of the following are true about arterial bleeding except: O a O b Blood spurts from the wound…

A: Bleeding is the loss of blood. There are three different types of bleeding. They are arterial…

Q: albumin water BLOOD process called basophils made made of formed in red bone biconcave disk cells…

A: Introduction: The human body comprises various types of cells, which combine to form tissues.…

Q: atelets platelet plug formation hemophilia megakaryocytes coagulation thromboxane A2 serotonin…

A: Hematopoietic cells or megakaryocytes, are essential for the generation of blood platelets. The…

Q: All types of shock result in inadequate blood flow to tissues. Which of the following types of shock…

A: A critical condition which is brought by a sudden reduction in the blood flow through the body is…

Q: Many platelets converge and stick together at a wound site, eventually forming a platelet plug, also…

A: Platelets are the tiny or very small blood cells that help our body to form clots to prevent from…

Q: The hematocrit is a measure of a. water concentration in the plasma. b. the percentage of formed…

A: Blood is specialized connective tissue that contains plasma and formed elements.  The proportion of…

Q: Describe what happens to a platelet when it comes in contact with an exposed collagen fiber, in a…

A: Collagen is a structural protein present in the walls of the blood vessels. The cells lining the…

Q: If one of the patient’s drugs were eptifibatide, which mechanism would best describe the actions of…

A: Eptifibatide can be defined as a synthetic cyclic hexapeptide which binds to the platelet receptor…

Q: Describe the difference between the actions of neutrophils and eosinophils

A: In blood, there are white blood cells of two types - granulocytes and agranulocytes. Both neutrophil…

Q: Explain the rules of transfusion. Illustrate what will happen if typeA blood is accidentally…

A: Blood type refers to the classification of blood based on the presence and absence of certain…

Q: A medical scientist is studying clotting In two patients, one with hemophillia and another without.…

A: The blood along with the blood vessels and the heart form the all-important cardiovascular system in…

Q: Formation and dissolution of clots is primarily regulated by   hemolysis positive feedback negative…

A: When platelets, proteins, and cells in the blood clump together, a blood clot forms. Your body…

Q: Which of the following statements are true of chemical blood clotting? (Read carefully and select…

A: The process through which blood turns from a liquid to a gel and forms a blood clot is known as…

Q: Which of the following are mechanisms which prevent clotting under normal circumstances? Select all…

A: Blood clotting is a complex phenomena which usually occurs when due to any reason blood vessels are…

Hematology

Hematology is the branch of biology. Hematology is the medical field that deals with the treatment of blood disorders and cancers, such as hemophilia, leukemia, lymphoma, and sickle-cell anemia. Hematologists and hematopathologists are medical professionals who specialize in illnesses of the blood and its components.