4 A blood clot that forms along the wall of a blood vessel is called a thrombus.

Question

4 A blood clot that forms along the wall of a blood vessel is called a thrombus. An embolus is piece of a thrombus that breaks off and flows through the blood until its gets stuck in a small blood vessel downstream from the original thrombus. a Trace the pathway an embolus that broke off from a thrombus in the femoral artery would take (assume it gets stuck in arterioles, before it reaches capillary beds): b Trace the pathway an embolus that broke off from a thrombus in the femoral vein would take (assume it gets stuck in arterioles, before it reaches capillary beds): Yasmin was diagnosed with an abdominal aortic aneunsm uhich means that part of thoollofhor abdomi

Explanation / Answer

An embolus which dislodges from the femoral artery will try to reach the heart or lungs. It will take the following pathway: Femoral artery External iliac artery Common Iliac Artery Abdominal aorta Thoracic aorta Ascending aorta Arch of aorta Descending aorta Left ventricle An embolus which breaks off from the femoral vein will take the following path: Femoral vein External iliac vein Common Iliac vein Inferior vena cava Right atrium Pulmonary artery Pulmonary embolism An aneurysm is a localised dilation of the vessel wall. This is often the result of vessel weakening which can be due to a number of causes. Now, the vessel wall is made up of connective tissue like collagen and elastin. These are responsible for maintaining the integrity of the vessel wall. A decreased amount of these two can weaken the wall land causes its dilation. Apart from the physical pain and deformities which may occur a featur fracture, several other complications can occur, including severe vascular emergencies. In this case, either fat embolism from the broken bones or trauma to the vessels might have occurred. This leads to blockage of blood supply to the distal parts of the leg. This appears as paleness of the limb.

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