The Heart Essay -- Biology

The heartThe Heart is a very important organ in the body. It is what keeps your blood flowing and your organs going. It is a gumptious muscle that pumps more than two thousand gallons of blood every day. The blood that is pumped is filled with nutrition and oxygen (Colombo 7). It travels through out your body in less than sixty seconds. So it needs to be taken extra good business concern of. When abuse is put on the body, the hearts deed is not at its best. The Heart is a major organ that needs loving and care. Everyone has only one and by abusing it, they are cutting their go bad couple little by little. People can live their lives freely but how they choose to live them could be the difference between life and death.The heart is a pump with four chambers made of their own special muscle called cardiac muscle. Its interwoven muscle fibers enable the heart to contract or snarf together automatically (Colombo 7). Its about the same size of a fist and weighs some where around two blow fifty to three hundred fifty grams (Marieb 432). The size of the heart depends on a persons height and size. The heart wall is enclosed in three layers superficial epicardium, spirit epicardium, and deep epicardium. It is then enclosed in a double-walled sac called the Pericardium. The terms Systole and Diastole refer respectively and literally to the contraction and relaxation periods of heart activity (Marieb 432). era the doctor is taking a patients blood pressure, he listens for the contractions and relaxations of the heart. He also listens for them to make sure that they are going in a single rhythm, to make sure that there are no arrhythmias or complications. The heart muscle does not depend on the nervous system. If the nervous s... ... curtain raising to live longer by doing a few extra steps, or eating cheerios instead of a thick juicy donut. It may not see like much but it is.The Heart is a major organ that needs loving and care. Everyone has only one and by abusing it, they are cutting their live span little by little. People can live their lives freely but how they choose to live them could be the difference between life and death. By eating healthy, exercising, people can live longer lives. People who smoke, drink, and dont exercise normally have to look forward to a draw play of testing such as cat scans and x-rays. They get to go through surgeries, such as Bypasses and stents. Eventually doctors can no longer do every more for them but place them on machines that will continue the hearts job. Why not choose to live life to the fullest and take care of one of the bodys most important organs.