What is Blood Flow and Resistance? | DDx

Описание: A new informative, succinct, and exact video about blood flow and resistance is available from sqadia.com.

To help you comprehend the notion of blood flow and resistance, we've linked concepts like blood flow velocity, blood pressure, and pressure gradient. In order to be able to respond to the question, "What is Blood flow and resistance?" at the conclusion of this video.

So let's have a quick look at it!

▬ 📌 Blood Flow
Blood flow is defined as, The movement of blood through the circulatory system.

It can be expressed by the equation:

Q = ΔP/R

Where,
🟡 Q = Blood flow
🟡 ΔP = Pressure gradient
🟡 R = Total peripheral resistance

The relation of Blood flow with Pressure gradient and Total peripheral resistance is well explained, in this video.

▬ 📌 Velocity of Blood Flow
The speed per unit time, with which the blood flow inside the vessels is called its Velocity.

It can be expressed by the equation:

V = Q/A

Where,
🟠 V = velocity
🟠 Q = Blood flow
🟠 A = Cross-sectional area

▬ 📌 Blood Flow Resistance
Resistance is defined as the measure of opposition to the flow of blood inside the vessels. It can be expressed by Poiseulle’s equation;

R = 8ηl/лr4

This equation describes all the factors affecting resistance and thus affects blood flow. These are the viscosity, Length, and Radius of the blood vessels.

Resistance can be expressed as;
🔵 Parallel resistance
🔵 Series resistance

Learn details about it in this video!

▬ 📌 Blood Pressure
Pressure or force per unit area, exerted by the blood, on the walls of the vessels and heart chambers is termed Blood pressure.

How all these factors affect blood flow is well described in this video.

So, that was just a glimpse of the topic. For complete details, watch this video!

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