Biology 4.3 Flashcards
1
Q
Right and left atrium and right and left ventricle are the 4 main chambers in the heart.
A
Oiecjcib
2
Q
Why does the heart contain valves?
A
So that blood flows in the right direction.
3
Q
Why is the muscular wall of the left ventricle bigger than the right?
A
It pumps oxygenated blood round the body.
4
Q
What is a stent?
A
A tube that opens an artery to restore and maintain blood flow.
