Factors Affecting Blood Flow and Vascular Resistance The Poiseuille Equation

The video tutorial explains the factors affecting blood flow in the cardiovascular system using the Hagen Poiseuille equation. It highlights the importance of the pressure gradient and its role in blood flow, comparing scenarios of rest and exercise. The tutorial also discusses vascular resistance, focusing on blood viscosity, vessel length, and vessel diameter. It explains how these factors influence resistance and blood flow, with a detailed look at how vessel diameter is regulated through vasoconstriction and vasodilation.

Explain the concept of vascular resistance and its impact on blood flow.

What is the relationship between blood viscosity and blood flow?

How does sympathetic nervous system stimulation affect blood vessel diameter?

What is the effect of increased pressure gradient on blood flow?