Arteries carry blood away from the heart to the tissues of the body.
Veins carry blood from the tissues of the body back to the heart.
Arteries carry oxygenated blood expect pulmonary artery.
Veins carry deoxygenated blood except pulmonary vein.
Arteries have thick elastic muscular walls.
Veins have thin non elastic less muscular walls.
Arteries are usually positioned deeper within the body.
Veins are usually positioned closer beneath the surface of the skin.
Valves are absent.
Valves are present.
These possess narrow lumen.
These possess wide lumen
Blood flows under high pressure.
Blood flows under low pressure.
These are reddish in color.
These are bluish in color.
Pulmonary and systemic arteries.
Superficial veins, deep veins, pulmonary veins and systemic veins.
These show spurty movement of blood giving pulse.
These show sluggish movement of blood.
Pulse is detectable in the arteries.
Pulse not detectable in the veins.
Arterial walls are more rigid.
Veins have collapsible walls.
Time of Death
Arteries empty up at the time of death.
Veins get filled up at time of death.
Oxygen levels is quite high in arterial blood.
Oxygen level is low comparatively.
CO2 level is low in arterial blood.
CO2 level is high in venous blood.
Injury to the Blood Vessel
Pooling of blood
Contraction of muscle
Atherosclerosis, Angina Pectoris, Artherogenesis- myocardial ischemia.
Deep vein thrombosis, varicose veins.