I feel kind of dumb for not understanding this one, but here it goes:
If the total cross sectional area rises from aorta<arterioles< capillaries, why does every book say that pressure drops most in arterioles because they are the highest point of resistance in the cardiovascular system?
If total cross-sectional area is larger in the arterioles than the aorta, and since every resistance vessel is in parallel, shouldn't this be a lower point of resistance comparing to the aorta? Thus with resistance going down, it makes sense that arterial pressure also drops.
If the total cross sectional area rises from aorta<arterioles< capillaries, why does every book say that pressure drops most in arterioles because they are the highest point of resistance in the cardiovascular system?
If total cross-sectional area is larger in the arterioles than the aorta, and since every resistance vessel is in parallel, shouldn't this be a lower point of resistance comparing to the aorta? Thus with resistance going down, it makes sense that arterial pressure also drops.