Friday, 25 April 2014

Arteries n Veins!

Arteries vs Veins: 
There are two types of blood vessels in the circulatory system of the body - arteries that carry oxygenated blood from the heart to various parts of the body; and veins that carry blood towards the heart for oxygenation.
Oxygen Concentration: 
A: Arteries carry oxygenated blood (with the exception of the pulmonary artery and umbilical artery).

V: Veins carry deoxygenated blood (with the exception of pulmonary veins and umbilical vein).
A: Pulmonary and systemic arteries.
V: Superficial veins, deep veins, pulmonary veins and systemic veins
Direction of Blood Flow:
A: From the heart to various parts of the body.
V: From various parts of the body to the heart.
A: Thick, elastic muscle layer that can handle high pressure of the blood flowing through the arteries.
V: Thin, elastic muscle layer with semilunar valves that prevent the blood from flowing in the opposite direction.

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