Question

In general, the VELOCITY of blood flow ___: is slower in arteries than capillaries is slower in veins than capillaries is faster in arteries than capillaries is faster in capillaries than veins 

          In general, the VELOCITY of blood flow ___:
is slower in arteries than capillaries
is slower in veins than capillaries
is faster in arteries than capillaries
is faster in capillaries than veins
In general, the VELOCITY of blood flow : is slower in arteries than capillaries is slower in veins than capillaries is faster in arteries than capillaries is faster in capillaries than veins

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Biology for AP Courses
Biology for AP Courses
Julianne Zedalis, John Eggebrecht
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In general, the VELOCITY of blood flow ___: is slower in arteries than capillaries is slower in veins than capillaries is faster in arteries than capillaries is faster in capillaries than veins
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Transcript

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00:01 So in the question, we have to choose that which of the following matches with the velocity of blood flow.
00:09 So the velocity of blood flow, okay, it is inversely proportional to the cross -sectional area.
00:23 Okay.
00:23 What does that mean? that means, let us write this as csa.
00:28 Okay if the c s a cross -sectional area increases that means the velocity will decrease okay so for artery and vein okay their cross -sectional area is low okay so what does that mean that means the velocity of blood flow here is highest whereas in case of capillaries okay we see that the cross -sectional area is high right because the capillaries extends to every tissue and through every cell right it is a vast network so here we find that the velocity okay it is lowest so the first option that is the velocity of blood flow is lower in arteries than capillaries...
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