What is systemic circulation ? Describe its importance. why are the walls of the ventricle more muscular than the walls of atria ?

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Solution

The oxygenated blood entering the aorta is carried by a network of arteries, arteriole, and capillaries to the tissues from where the deoxygenated blood is collected by a system of venues, veins, and vena cava and carried to the right atrium. This is called systemic circulation.
The systemic circulation provides the functional blood supply to all body tissue. It carries Oxygen and nutrients to the cells and picks up Carbon dioxide and waste products.
Walls of ventricle are more muscular because ventricles have to do more work as compare to atria. Ventricles pump blood into various organs and the pressure of blood flowing in them is more than that of auricles.

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