1.
Carries blood away from the heart
2.
Carries blood to the heart
3.
when arteries become little arteries
4.
join the smallest arterioles and venules
5.
the term for when oxygen goes from red blood cells to organs
6.
the protein in red blood cells that contains iron
9.
the liquid part of the blood which is made up of water
10.
they are responsible for blood clotting
11.
apart of your immune system that helps the body to fight against disease
