The lumen is the hollow opening or the space inside the blood vessel. Artery Vein Capillary Function Carry blood away from the heart (usually oxygenated blood, except for the pulmonary artery ...
The lumen is the hollow opening or the space inside the blood vessel. Artery Vein Capillary Function Carry blood away from the heart (usually oxygenated blood, except for the pulmonary artery ...