Circulation question

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Favzky

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I did an Altius FL and I found a question about circulation that confused me. The answer is anchored on the fact that arteries do not have the ability to dilate. I have always thought that they did dilate. Have I been wrong all this while or is this information wrong?

Thanks!!
 
I did an Altius FL and I found a question about circulation that confused me. The answer is anchored on the fact that arteries do not have the ability to dilate. I have always thought that they did dilate. Have I been wrong all this while or is this information wrong?

Thanks!!

Mind posting the question?

Smooth muscle allows for the diameter of arteries to constrict and dilate.
 
Mind posting the question?

Smooth muscle allows for the diameter of arteries to constrict and dilate.
I do understand the explanation and I know that it is most unlikely for arteries to dilate in order for macrophages to get to an injury site. However, I want to make sure I am not missing a fact about dilation and constriction of arteries since the explanation says "Arteries do not have the ability to dilate." Is this just an error in explanation, or am I missing something?

Thank you!
 

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I do understand the explanation and I know that it is most unlikely for arteries to dilate in order for macrophages to get to an injury site. However, I want to make sure I am not missing a fact about dilation and constriction of arteries since the explanation says "Arteries do not have the ability to dilate." Is this just an error in explanation, or am I missing something?

Thank you!

Maybe it is a semantics thing...

Let's take the aorta for example. My understanding is during systole the aorta dilates as it swells with blood, then constricts/rebounds during diastole to push along the blood.
 
Maybe it is a semantics thing...

Let's take the aorta for example. My understanding is during systole the aorta dilates as it swells with blood, then constricts/rebounds during diastole to push along the blood.
Makes sense. At least I know for sure that arteries do dilate like you just explained. I think that the explanation given in that particular question may have been worded wrong or weird. Thank you tho!
 
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