- #1
Jmiz
- 20
- 0
One way to regulate blood pressure is through vasoconstriction which in turn increases peripheral resistance, but also decrease the amount of blood that passes through the vessel. These two changes have opposite effects on blood pressure. So is it because the resistance increase effect lead to a greater increase of bP than the effect of having lower volume of blood passing through the constricted vessel, which would in turn decrease bP since less volume lead to less vapor pressure from blood that would act on the vessel walls?
Also since blood flow = velocity times cross area of vessel, what is the impact on blood flow due to vasoconstriction?
Since bP = force exerted on vessel walls by blood, wouldn't bP not be equal at the site of vasoconstriction compared to another unconstricted site?
Thanks
Also since blood flow = velocity times cross area of vessel, what is the impact on blood flow due to vasoconstriction?
Since bP = force exerted on vessel walls by blood, wouldn't bP not be equal at the site of vasoconstriction compared to another unconstricted site?
Thanks