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18 Questions

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Blood Clotting Process

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Questions and Answers

What is the immediate response of the circular smooth muscle in blood vessels when they are damaged?

Coagulation

Vasoconstriction (correct)

Vasodilation

Platelet aggregation

What is the function of thromboxane A2 (TBA2) in the platelet plug formation phase?

Stimulate platelet activation (correct)

Seal off blood vessels

Inhibit platelet activation

Dissolve blood clots

What is the primary objective of the vascular spasm phase?

To stimulate coagulation

To dissolve blood clots

To reduce major blood loss (correct)

To activate platelet aggregation

What is the primary role of Actin and Myosin in the blood clotting process?

To reduce blood loss by contracting the injury area Signup and view all the answers

What is the byproduct of the coagulation phase that seals off damaged blood vessels?

Blood clot Signup and view all the answers

What type of muscle in blood vessel walls contracts during the vascular spasm phase?

Smooth muscle Signup and view all the answers

What is the link between the intrinsic and extrinsic pathways of blood coagulation?

Thrombin Signup and view all the answers

What is the main difference between the intrinsic and extrinsic pathways of blood coagulation?

The extrinsic pathway occurs rapidly Signup and view all the answers

What is the role of platelets in the platelet plug formation phase?

To form a platelet plug Signup and view all the answers

What is the role of vWF in the hemostasis process?

To facilitate platelet adhesion to the injured blood vessel wall Signup and view all the answers

What is the consequence of a deficiency in certain clotting factors?

Hemophilia Signup and view all the answers

What is the end product of the blood clotting process?

Fibrin threads Signup and view all the answers

What is the primary function of platelet-derived growth factor (PDGF) in the process of blood clotting?

To stimulate fibroblasts and smooth muscles to multiply and repair the damaged vascular Signup and view all the answers

What is the result of the process of clot retraction?

The clot becomes more compact and stable Signup and view all the answers

What is the term for the dissolution of the clot?

Fibrinolysis Signup and view all the answers

What is the term for the condition where the number of platelets is too low?

Thrombocytopenia Signup and view all the answers

What is the enzyme responsible for breaking down the clot?

Plasmin Signup and view all the answers

What is the function of kallikrein in the process of fibrinolysis?

To produce clot dissolution of fibrin and promote the formation of more kallikrein Signup and view all the answers