laura81
Forum Elite
Topics: 32
Posts: 175
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coronary blood flow as a function of perfusion pressure. what will happen if the guy starts running to catch a bus.....see the attachment
Attached Files:
Prezentare2.ppt (62 KB, 68 downloads)
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| Luckyall
Forum Guru
Topics: 11
Posts: 593
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is it X-Z ??? C?
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| drswapna05
Forum Newbie
Topics: 1
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IS IT B I.E XTO Y IS MY EXPLAINATION RIGHT IF FLOW INCREASES PRESSURE INCREASES TOO
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| Luckyall
Forum Guru
Topics: 11
Posts: 593
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nope.. the Max coronary blood flow is at the Max pumping pf heart, okay/
and thas the graph you see in this Qs !!!
So at the beginning of running, the pumping it canot be higher then at Maximun, correct ?
Then you have to look for a point that leads you to a lower pumping Press---> lower coronary flow... take a look at the kaplan physio book pg 102 where is described the regulation of the flow at the organ level ! 
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| drswapna05
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thank u ,undestood.so it is more volume but under same pressure during exercise.this is what i understood.
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OH GOD!PLEASE HELP ME TO ACHIEVE IT.after we do, hardwork, leave the rest to GOD
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| laura81
Forum Elite
Topics: 32
Posts: 175
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i still don't get it....i know coronaries get their flow during diastole, so during exercise HR increase , diastole decrease....so local vasoldialtors dilate them so blood flow increases.....but since in the picture thats the flow when they are maximum dilated.........i don't know ..i am confused with this question...
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| me007
Forum Guru
Topics: 72
Posts: 803
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coronary circulation is controlled almost entirely by local metabolic factors, it is why i think it will increase on that graph.
during systole mechanical compression reduces blood flow, after that blood flow inc to repay the O2 debt (reactive hyperemia)
i would answer C
what is in your answers sheet?
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| naidupraveen
Forum Newbie
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whats the answer?????????????
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| laura81
Forum Elite
Topics: 32
Posts: 175
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its C...on the answers ive got from some girl who said the answers are corect
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