Which properties do determine the radius of blood vessel?
I have these thoughts
- distension,
- elasticity,
- contractility and
- cross-sectional area of the walls.
Is there any other properties?
The radius of a blood vessel is entirely defined by only two parameters:
1.blood pressure
2.compliance of the vessel walls
Of course, active contraction can decrease the vessel radius. Physically, this is a decrease in compliance, so the above relation always remains true.