An organ is a complex structure of several tissues that form a particular function. The body has several organs such as the kidneys, heart, lungs, liver and brain (Pickering, Ron). However, sometimes a particular organ is unable to perform its function, this is called “organ failure”. Say no to plagiarism. Get a tailor-made essay on “Why Violent Video Games Should Not Be Banned”? Get the original essay. Every organ is capable of dysfunction, however, the most common organ failures occur in the heart and kidneys. The heart is an organ that pumps blood throughout the body, from the brain to the toes. The heart is the main part of the circulatory system because it maintains the pressure allowing blood to pass through the veins, capillaries and arteries. The heart has four chambers: the right ventricle, the left ventricle, the right atrium and the left atrium. The left atrium receives oxygenated blood from the lungs, similarly, the right atrium receives deoxygenated blood from the vena cava (Pickering, Ron). In Figure 1, the right atrium and ventricle and the left atrium and ventricle can be seen along with the position and other parts of the heart. There is a very distinct difference between the atria and the ventricles and that is, the atrium is the low pressure blood coming from the veins and the ventricle pumps the high pressure blood to the arteries. Heart failure can be caused by a variety of reasons, but the main cause is that the heart is not able to pump enough blood or meet the body's blood needs. Two hypotheses can be formulated when we suffer. In heart failure, either the heart is unable to fill with enough blood or it is unable to pump blood to the rest of the body, which over time weakens the heart, leading to cardiac congestion or heart failure. Additionally, heart failure develops differently in each individual: many face heart failure on both the right and left sides of the heart, although some only face the right or left side and not both. The right side of the heart only experiences heart failure when the heart is not able to pump enough blood for the lungs to get oxygen, while left heart failure occurs when the heart is unable to pump blood. “oxygen-rich” blood. for the body (Mayo Clinic). In most cases of heart failure, the heart is affected over time as it becomes stiff and weaker, but it has also been studied that in a few cases the heart muscle is susceptible to damage and both ventricles spread very widely, being unable to meet the body's oxygen needs. Figure 2 easily shows how, when a heart begins to weaken and has few symptoms of heart failure, it begins to enlarge. This requires the heart to start working harder and faster to pump blood for the body to function. Additionally, heart failure also has several external causes and not just those that occur in the heart. For example, heart failure can also be caused by high blood pressure or hypertension. Like when you have high blood pressure, the heart is made to work faster and harder, pumping more blood than the body needs regularly (Mayo Clinic). This overexertion could make the heart weaker and stiffer, leading to less pumping capacity and not enough blood for the body. Likewise, heart failure).