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by BlastRoom
Vascular spasm, the platelet plug and the clotting cascade, and what goes wrong when a clot travels.
#us_hs_anatomy_physiology
20 questions
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A small artery is cut, and the wall narrows within seconds. What happens immediately after that?
At an injury site, platelets have just attached and changed shape. What happens immediately next?
A temporary platelet plug now covers the break in a vessel wall. What happens immediately next to strengthen it?
Prothrombin activator has formed at the injured vessel. What happens immediately next?
Thrombin has just increased near a platelet plug. What happens immediately next?
Fibrin strands have just formed around the platelet plug. What happens immediately next?
The liver needs one vitamin to make prothrombin and several other clotting factors. Which vitamin is it?
After the fibrin mesh forms, platelets contract and pull the torn edges of the vessel closer together. What is this process called?
The final meshwork of a clot is made of long insoluble threads. Which protein forms those threads?
Damaged tissue releases tissue factor after a vessel is torn. What does that signal start?
Calcium ions are present during several clotting reactions. What do they help the cascade do?
Thrombin appears in the cascade before the stable mesh forms. Besides making fibrin, what does thrombin also do?
The wall has healed, and the fibrin framework is no longer needed. Which enzyme cuts it apart?
During cleanup, an inactive plasma protein is changed into plasmin. Which precursor is activated?
The repaired vessel removes the old clot by digesting its protein mesh. What is this process called?
After repair, the vessel lining turns on the cleanup enzyme in the clot. What effect does this have?
A clot forms in a deep leg vein, breaks loose, and returns through the right side of the heart. Where will it lodge first?
An embolus leaves the left atrium, enters the aorta, and blocks an artery supplying brain tissue. What follows?
A traveling clot blocks a coronary artery branch feeding cardiac muscle. What is the expected consequence?
A clot forms in a deep vein of the calf and stays attached to the vessel wall there. What is this condition called?
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Anatomy of the Heart
40 questions
