The Arteries have thick elastic walls because ( )
A. Rapid blood flows at high pressure
B. slow blood flows at low pressure
C. Rapid blood flows at low pressure
D. slow blood flows at high pressure
Answer:A
The Arteries have thick elastic walls because ( )
A. Rapid blood flows at high pressure B. slow blood flows at low pressure C. Rapid blood flows at low pressure D. slow blood flows at high pressure