Heart valve

Physiology Heart murmurs are aberrant heart noises that can be noted when using a stethoscope. Typically, these sounds come from the abnormal motion of blood amid cardiac chambers and across valves. As a result, turbulence occurs, bringing about “vibrations in the chambers of the heart or outflow vessels (aorta or pulmonary artery) that are detected as audible, low-frequency sounds,” (Klabunde, 2016). These sounds are different from the regular heart sounds that symbolize the closing of the…

The Anatomy of the Mitral Valve The mitral valve, also called the left bicuspid atrioventricular valve, is located in the left side of the heart between the left atrium and the left ventricle. In relation to the sternum, the mitral valve is positioned posteriorly and is at the height of the 4th costal cartilage of the rib cage (Moore, Dalley and Agur, 2014). The valve is composed of two cusps, the anterior and the posterior cusps, which are held in place by chordae tendinous cords (Snell, R.S.…

The mitral valve is a valve that allows blood flow from one chamber of the heart, the left atrium, to another called the left ventricle. In mitral valve prolapse, the valve slips backward due to the abnormal size of or damage to the mitral valve tissues. Mitral valve prolapse is a common cause of a heart murmur caused by a "leaky" heart valve. For most people with mitral valve prolapse, the cause is unknown. It can be caused by conditions in which cartilage is abnormal (connective tissue…

liquid like substance in the blood. The way that the Cardiovascular System works is that the heart receives the deoxygenated blood (blood that is low in oxygen) through the Vena Cava (is a vessel called a vein that carries blood that needs oxygen to the heart) then the blood flows into the right atrium. From the right atrium the blood goes through the tricuspid valve and into the right ventricle. The tricuspid valve then closes when the ventricles is full then the right ventricle contracts,…

size of a large fist, heart is made up of cardiac muscle, myocardium, with skeletal muscle-like striations. It has two upper atria & two lower ventricles separated vertically by septum, and four main valves with which the blood makes its directional flow into and out of the heart. Deoxygentated blood with which the blood flows into and out of the organ. Deoxygenated blood enters through the venae cava fills the right atrium (RA) and right ventricle (RV) through the tricuspid valve. Then, RV…

The heart is one of the major organs in the body that is essential. The heart is considered a pump that helps the blood flow, continuously, throughout the body. The heart is located under the rib cage, between the lungs, and more on the left side of the breastbone. It has two major coronary arteries, electrical impulses, four chambers, and four valves to help the blood flow one way. Deoxygenated blood enters the right atrium from the superior and inferior vena cava. When the right atrium…

The left side of the heart receives oxygenated blood from the lungs and pumps it to the cells and tissues to the body. The blood then returns to the right side of the body this is called systemic circuit. From the heart blood flows through large muscular arteries, then into smaller and smaller arteries, then arterioles and finally to the capillaries. It’s in the capillaries where the diffusion process takes place to exchange molecules of oxygen and nutrients for carbon dioxide of nearby cells,…

Left Ventricular Assist Device Congestive heart failure is defined as a disease that develops when the heart is unable to pump enough blood through the body to sustain life. It is estimated that there are currently over five million people in the United States suffering from heart failure (Trivedi, Cheng, Singh, Williams, & Slaughter, 2014). For a patient with heart failure, the best hope of survival is a heart transplant (Dumitru, 2015). Unfortunately, heart transplants are not always…

the left atrium and left ventricle are not working properly due to mitral valve not working appropriately. The reason this set of valves was chosen is because in the passage, it stated that the X-Ray show an enlargement in the left atrium and left ventricle. This happen is due to inefficient cycle of blood resulting in abnormal heart sound or heart murmur. Mitral valve of the left side is misshape and less flexible. Mitral valve has a leakage and allows blood to backflow into the atrium when…

Heart is a muscular organ located in the thoracic cavity; it is responsible for pumping the blood to rest of the body through the circulatory system.1 It is composed of four chambers: left & right atrium and ventricle, these two chambers are separated by valves(atrioventricular), whereas the left and right side of heart is separated by interventricular septum.1 Walls of heart are composed of cardiac myocytes, these cells contain myofilaments, each unit is composed of contractile protein called…