How does blood pressure change as blood flows through...

How does blood pressure change as blood flows through systemic circulation? Group of answer choices Blood pressure increases due to increased blood vessel diameter Blood pressure decreases due to increased blood vessel diameter. Blood pressure increases due to decreased cardiac output. Blood pressure decreases due to increased peripheral resistance.

Transcript

00:01 Let us first understand what is blood pressure.

00:02 Suppose this is any blood vessel, this is the wall or the lining of blood vessel that can be either artery or vein or capillary and within this blood vessel our blood flows.

00:22 This is blood.

00:25 We have different kind of blood cells in our system rbc, wbc, platelet and this blood creates a pressure against the wall of the blood vessel and we call that as blood pressure or bp.

00:40 It is influenced by several factors like the component of circulatory system.

00:45 So we know our heart has four chamber.

00:50 One is this is left atrium, this is left ventricle, this is right atrium, this is right ventricle.

00:58 We know heart pump blood from left ventricle to the artery and this artery carry oxygenated blood and it has the highest blood pressure and we call that pressure as systolic blood pressure and its value is 120 mm hg.

01:19 Now moving on to veins, we know veins carry deoxygenated blood from the rest of the body to the right atrium and they have the lowest blood pressure and we call that pressure as diastolic blood pressure which value is 80 mm hg.

01:40 So we can say on the basis of the blood pressure artery has the highest blood pressure then capillary and then vein.

01:55 Veins have the lowest blood pressure and we call that pressure as diastolic blood pressure.

02:01 Now moving on to the part of circulatory system that influences blood pressure is cardiac output or co...

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