1. Blood Vessels.
Name Direction of Blood Thickness of Presence of Lumen size Other facts?
Blood Flow Pressure Walls Oxygen
Very high
Arterioles
Towards Heart
Venules
1 cell thick?
Arteries carry oxygenated blood except for the ……………………… artery which carries blood away from the heart to the lungs.
Veins carry deoxygenated blood except for the ……………………… vein which carries blood to the heart from the lungs