KA 2.7 Atherosclerosis and thrombosis

Where in an artery does an atheroma form?

• In the lumen

• Under the endothelium

• In the muscular layer

• In the outer connective layer

Choose the substance that would NOT be found in an atheroma.

• Cholesterol

• Fibrous material

• Calcium

• Protein

which answer correctly describes the effect of an atheroma on the artery?

• Causes narrowing of the lumen and high blood pressure

• Causes narrowing of the lumen and low blood pressure

• Causes widening of the lumen and high blood pressure

• Causes widening of the lumen and low blood pressure

Deposits of calcium in an atheroma cause artery walls to become thickened and to lose their elasticity. Name this condition.

• Angina

• Peripheral Vascular Disease

• Hardening of the arteries

• Stroke

As an atheroma gets larger it eventually pushes through the wall of the endothelium. The endothelium becomes damaged leading to the formation of a blood clot. Name this type of blood clot.

• Atheroma

• Atherosclerosis

• Thrombus

• Thrombosis

In the process of thrombosis, which substance starts the formation of a thrombus?

• Clotting factors

• Prothrombin

• Thrombin

• Fibrin

Name the substance that causes the conversion of prothrombin to thrombin.

• Fibrin

• Fibrinogen

• Enzymes

• Clotting factors

Name the substance that causes the conversion of fibrinogen to fibrin.

• Clotting factors

• Prothrombin

• Thrombin

• Enzymes

what is the name given to a thrombus that breaks loose and moves in the bloodstream?

• A blood clot

• An embolus

• Meshwork

• Thrombus

Which condition would be caused by an thrombus that blocks a vein in the leg?

• Stroke

• Heart attack

• Pulmonary embolism

• DVT