A moving clot that blocks the blood flow to an area of the brain is called which of the following?

Question

BlackTom AI · Accepted Answer

Question restatement: A moving clot that blocks the blood flow to an area of the brain is called which of the following?

Option A: Aneurysm. This is not a clot but a balloon-like dilation of a blood vessel, which can rupture and cause hemorrhage rather than a moving occlusion. Therefore, it does not describe a moving clot.

Option B: Thrombus. A thrombus forms in place at the site of vessel injury and can cause local blockage. It is stationary, unlike an embolus, so this option does not fit the description of a moving clot traveling to occlude brain tissue.

Option C: Hemorrhage. Hemorrhage refers to bleeding, the escape of blood from vessels, not a clot traveling to cause a blockage. It does not describe a moving intravascular occluder.

Option D: Angiogram. An angiogram is an imaging study of blood vessels, not a clot itself. It does not describe a moving clot causing blockage.

Option E: Embolus. An embolus is a clot or other material that travels through the bloodstream from one location to another and can lodge in a distant vessel, causing an occlusion in brain tissue. This matches the description of a moving clot that blocks blood flow.

In summary, the key distinction is mobility: thrombus is typically stationary at its site, while an embolus migrates and can occlude a distant vessel, which is why an embolus best fits the presented scenario.

A moving clot that blocks the blood flow to an area of the brain is called which of the following?单项选择题

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