A Brief Look at the Human Heart

1728 WordsJan 30, 20187 Pages
The heart is one of the most important organs in the entire human body. It is really nothing more than a pump, composed of muscle which pumps blood throughout the body, beating approximately 72 times per minute of our lives. The heart pumps the blood, which carries all the vital materials which help our bodies function and removes the waste products that we do not need. It is so essential to our survival that any malfunction or congenital or acquired defect can lead to major complications and possibly death. Ventricular Septal Defect (VSD) is a congenital heart disease that affects the membranous part of the interventricular septum. A defect in the interventricular septum allows communication between the systemic and pulmonary circulations. As a result, flow moves from a region of high pressure to a region of low pressure. In other words, blood flows from the left ventricle to the right ventricle, hence the name left-to-right shunt. There are various degrees of severity for this disease by having either a small or large shunt. Patients with a small shunt are asymptomatic and their life prognosis is very optimistic compared to those with a large shunt. In the latter case, a medium to large shunt increases pulmonary blood flow, which causes pulmonary disease and may cause cardiac failure. This congenital heart disease is the most common of form of congenital cardiovascular anomalies. Other forms of congenital heart disease (CHD) include atrial septal defect (ASD), pulmonary
Open Document