3. Circulatory System - Arterioles Flashcards
1
Q
What are the arterioles?
A
Arteries are divided into smaller vessels which are the arterioles.
They from a network throughout the body.
2
Q
Function of arteriole.
A
They transport blood around the body to different areas of demand in the body by muscles inside of them.
3
Q
What do the muscles inside the arterioles do?
A
They contract to restrict blood flow.
Relax to allow full blood flow.
4
Q
Structure of arteriole.
A
Tiny branches which extend into the capillaries.
5
Q
Why does the blood pressure decrease along a blood vessel?
A
Friction.
