Take the 2-minute tour ×
Biology Stack Exchange is a question and answer site for biology researchers, academics, and students. It's 100% free, no registration required.

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?

share|improve this question

1 Answer 1

up vote 0 down vote accepted

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.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.