1
Q
Arteries
A
The muscular-walled tubes forming part of the circulation system by which blood is conveyed from the heart to all parts of the body.
2
Q
Veins
A
The tubes forming part of the blood circulation system of the body, carrying mainly oxygen-depleted blood towards the heart.
3
Q
Capillaries
A
The fine branching blood vessels that form a network between the arterioles and venules.
4
Q
Vein Valve
A
Flaps within the veins that allow the blood to flow only in one direction.
5
Q
Oxygenated Blood
A
To combine or mix with oxygen, as in a physical, chemical, or biological system. Blood is oxygenated in the lungs.
