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Kind of tricky. The coronary arteries break off from the aorta just after the aortic valve, but while still inside the heart! I know, they didnt exactly stress this point in Gross Anatomy, but still...

This may serve to keep coronary flow normalized, even if there is some problem (calcification) in the proximal aorta? I dunno. But it is not as straighforward as it would at first seem.
 
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Idiopathic said:
Kind of tricky. The coronary arteries break off from the aorta just after the aortic valve, but while still inside the heart! I know, they didnt exactly stress this point in Gross Anatomy, but still...

This may serve to keep coronary flow normalized, even if there is some problem (calcification) in the proximal aorta? I dunno. But it is not as straighforward as it would at first seem.
Click to expand...


i swear if i get a question like that on the test , its gonna be ROTA time for me
 
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Is it systemic arteries --> aorta --> Aortic Sinus --> Coronary Arteries

or

systemic arteries --> aorta --> Aortic Valve --> Coronary Arteries?

?????????????

Help!!!
 
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Id put my two cents on it being systemic->aorta->aortic sinus->coranaries
but im done with boards... (therefore, because i dont have too much to worry about, chances are im right...thats how it works with me)
 
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BrooklynDO,

I think you're right on the money, I put the same thing.


Anyone else?
 
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bigfrank said:
Is it systemic arteries --> aorta --> Aortic Sinus --> Coronary Arteries

or

systemic arteries --> aorta --> Aortic Valve --> Coronary Arteries?

?????????????

Help!!!
Click to expand...

Looking at page 211 of the 3rd edition of netters, it looks like heart to aorta to aortic sinuses to coronary arteries. Of course, I have no idea what the question is.
 
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why would an RBC enter the aorta, and then turn around to go past the aortic valve a 2nd time?? go with your first choice... the step 1 wouldn't ask such an elementary question, OR WOULD IT? i doubt it, but what do i know

bigfrank said:
Is it systemic arteries --> aorta --> Aortic Sinus --> Coronary Arteries

or

systemic arteries --> aorta --> Aortic Valve --> Coronary Arteries?

?????????????

Help!!!
Click to expand...
 
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The coronary arteries are right on the outside of the valve, so the RBCs don't have to go back in. At the end of systole, when aortic pressure is greater than ventricular pressure, the aortic valves close and blood goes into the coronaries (because of the backpressure from the aorta.)

At least that is what I think we learned.....
 
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