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Interesting Facts About The Human Heart

We all know that the heart is the organ that keeps us alive and keeps the other organs working. But most of us lack the knowledge of how it works and what are the basic facts about the human heart. 
The heart is a tireless, reflex muscle that pumps the blood to the whole body, so that the dissolved nutrients and oxygen can reach the other organs and body cells. 

The heart contains 4 basic valves that ensure transferring the blood in its right paths in and out through the veins and arteries, respectively.

As I said above, the heart is a reflex muscle; that means you can not control how or when it works, and that it continuously pumps the blood. It happens due to slight amount of electricity passing through the heart, which causes the heart muscle to contract, and hence pumps the blood to the vessels when the chambers get narrower.

The heart never stops, and if it happens the person dies. Electric charged heart devices are used to bring it back to work in some cases immediately after it stops by passing electric current in it.

In the womb of a pregnant woman, the first organ that forms in the fetus is the heart and it starts beating only 4 weeks after conception. It takes its familiar shape after 27 days of formation, and after reaching a certain size the other organs start to form.

The heart grows like all organs after the baby is born, and for an adult person its average size is the same of a closed hand.

The heart is located in the chest, and as doing the major job in the human body it is well protected from harm or external pressure by the rib cage. It is located in the middle of the chest and not the left side as many people think.

The heart beat ratio in women is more than that in men to an average of 78 and 70, respectively.

Heart attacks are dangerous keys to further heart failure as they usually leave scars and damage the tissues of the heart muscle.

The average amount of blood in the adult individual is approximately 4 to 5 quarts (up to 6 liters), where in newborn babies it is only about one cup.

Everyday, the blood travels nearly 12,000 miles in the adult human body, and in rest it needs only 6 seconds to reach the lungs and return back to the heart, 8 seconds for similar process to the brain and 16 seconds to the toes.

According to the person’s age and health case, the amount of blood pumped each minute can vary on a wide range of 5 to 30 liters.

Another amazing fact about the heart is it generates huge amount of mechanical work “energy” that is sufficient to drive a truck for 20 miles … every day!!! That work, done over an adult’s lifetime, is equivalent to driving a truck to the moon and back!