PATHO 370 Final Exam Questions and Correct Answers 100% Verified Graded A+
Hemostasis - The normal process that stops bleeding after blood vessel injury while
maintaining blood flow within intact vessels.
Purpose of Hemostasis - Prevent blood loss while preserving normal circulation.
Three Steps of Hemostasis - Vasoconstriction, platelet plug formation, and coagulation.
Vasoconstriction - Immediate narrowing of an injured blood vessel to reduce blood loss.
Platelets (Thrombocytes) - Blood cells responsible for forming the initial platelet plug.
Platelet Plug Formation - Platelets adhere, activate, and aggregate at the site of vessel
injury.
Coagulation Cascade - Series of clotting factor reactions that produce fibrin to stabilize
the platelet plug.
Fibrin - Insoluble protein that strengthens and stabilizes a blood clot.
Clot Retraction - Tightening of the clot to bring damaged vessel edges together.
, Fibrinolysis - Breakdown and removal of a clot after healing has occurred.
Plasmin - Enzyme responsible for breaking down fibrin during fibrinolysis.
Thrombus - Blood clot that forms within a blood vessel and remains attached.
Embolus - A clot or other material that travels through the bloodstream and lodges in
another vessel.
Thromboembolism - Obstruction of a blood vessel by an embolus.
Virchow's Triad - Endothelial injury, abnormal blood flow (stasis or turbulence), and
hypercoagulability.
Endothelial Injury - Damage to the blood vessel lining that promotes clot formation.
Stasis - Slowing of blood flow that increases the risk of thrombosis.
Hypercoagulability - Increased tendency for blood to clot.
Deep Vein Thrombosis (DVT) - Formation of a thrombus within a deep vein, usually in
the lower extremities.
Hemostasis - The normal process that stops bleeding after blood vessel injury while
maintaining blood flow within intact vessels.
Purpose of Hemostasis - Prevent blood loss while preserving normal circulation.
Three Steps of Hemostasis - Vasoconstriction, platelet plug formation, and coagulation.
Vasoconstriction - Immediate narrowing of an injured blood vessel to reduce blood loss.
Platelets (Thrombocytes) - Blood cells responsible for forming the initial platelet plug.
Platelet Plug Formation - Platelets adhere, activate, and aggregate at the site of vessel
injury.
Coagulation Cascade - Series of clotting factor reactions that produce fibrin to stabilize
the platelet plug.
Fibrin - Insoluble protein that strengthens and stabilizes a blood clot.
Clot Retraction - Tightening of the clot to bring damaged vessel edges together.
, Fibrinolysis - Breakdown and removal of a clot after healing has occurred.
Plasmin - Enzyme responsible for breaking down fibrin during fibrinolysis.
Thrombus - Blood clot that forms within a blood vessel and remains attached.
Embolus - A clot or other material that travels through the bloodstream and lodges in
another vessel.
Thromboembolism - Obstruction of a blood vessel by an embolus.
Virchow's Triad - Endothelial injury, abnormal blood flow (stasis or turbulence), and
hypercoagulability.
Endothelial Injury - Damage to the blood vessel lining that promotes clot formation.
Stasis - Slowing of blood flow that increases the risk of thrombosis.
Hypercoagulability - Increased tendency for blood to clot.
Deep Vein Thrombosis (DVT) - Formation of a thrombus within a deep vein, usually in
the lower extremities.
