Intro:
The heart is a muscular organ and is liable fore pumping pitch around the body, and on average the homosexual heart beats at 72 beats per minute. When expression at the heart (see diagram) it is important to remember that the unexpended and unspoiled side are reversed (due to the way we are tone at it). The mightily side of the heart deals with de group Oated blood and pumps it into the lungs. The left side of the heart deals with oxygenated blood, and pumps it around the entire body. The lower domiciliate of the heart is know as the ventricles and is more muscular and stronger than the stop number chambers, known as the atria. This is because a large volume of blood is pumped from the ventricles up through the atria and around the body. It is important to preserve a healthy heart, as it reduces the risk of developing steep blood pressure and cholesterol levels, as wholesome as developing heart disease. By eating healthy and doing even exercise we are able to reduce theses factors as well as reducing stress levels too.
Main:
The heart is a muscular organ that it part of the cardiovascular system. It is located mingled with the lungs, behind the sternum and is approximately the size of a fist.
The heart is protected by a membrane called the pericardium which surrounds the heart and secretes a fluid that reduces friction when the heart beats. The atrias job is to get together blood and the ventricles job is to be filled with blood and aim it to everywhere in the body. There are three layers which do work up the wall of the heart. The outer layer is epithelial tissue, the midpoint layer is cardiac muscle and the inner layer is connection tissue. Deoxygenated blood is pumped from the right ventricle and into the lungs, where the blood is regenerated with oxygen and returned through the pulmonary vein. The following explains the hearts role and inside structure in more detail.
There are quatern chambers in the heart, the top of the heart has a right and left atrium...If you want to get a full essay, ensnare it on our website: Ordercustompaper.com
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