Arterioles

This forum made possible through the generous support of SDN members, donors, and sponsors. Thank you.
T

topdent1

Full Member
10+ Year Member
15+ Year Member
Joined
Aug 6, 2007
Messages
553
Reaction score
5
Points
4,551
  1. Pre-Dental
Advertisement - Members don't see this ad
Why do arterioles offer the greatest resistance to blood flow in the circulatory system?

Does it have something to do with blood exiting into the capillaries and the blood left behind is super concentrated?
 
Sort by date Sort by votes
topdent1 said:
Why do arterioles offer the greatest resistance to blood flow in the circulatory system?

Does it have something to do with blood exiting into the capillaries and the blood left behind is super concentrated?
Click to expand...

I believe total cross-sectional area of Capillaries is way larger than total cross-section area of arterioles. Arteries on other hand are quite larger than Arterioles. But, than might not be the only reason.......!!
 
Upvote 0 Downvote
topdent1 said:
Why do arterioles offer the greatest resistance to blood flow in the circulatory system?

Does it have something to do with blood exiting into the capillaries and the blood left behind is super concentrated?
Click to expand...

Arterioles have thin muscular walls that are site of vascular resistance! When the oxygenated blood is pumped from the heart to the body with high pressure in which the arteries need to be able to resist the pressure. Consequently, arterioles need to be able to resist that pressure as well.
 
Upvote 0 Downvote
You must log in or register to reply here.
Top Bottom