Heart valve

The heart is comprised of four chambers, the right atrium, right ventricle, left atrium and the left ventricle. The right atrium is the chamber which receives blood from the body that has been depleted from its oxygen and pumps it to the right ventricle. The right ventricle then pumps the blood from the right atrium over to the pulmonary artery which as the name would suggest means it goes to the lungs and the oxygen depleted blood is once again oxygenated. The left atrium of the heart then…

The Cardiovascular System is composed of the heart and the blood vessels. The main function of the cardiovascular system is to pump blood around the body. The cardiovascular System is divided into two parts, the systematic circuit and the pulmonary circuit. The systematic circuit contains oxygenated blood and the pulmonary blood contains deoxygenated blood. In order to prevent oxygenated and deoxygenated blood from mixing there is a structure called an interventricular septum. The septum…

located in the upper chamber of the heart. This special pathway is as follow: the sinoatrial node, atrioventricular node, his-purkinje network. The impulse starts in a small bundle of specialized cell which is known as the sinoatrial node located in the right atrium. The sinoatrial node sets the rate and rhythm of the heartbeat. The atrioventricular node slows the electrical signal before it enters the ventricles. It is located in the center of the heart between the atria and the ventricles…

2.1. The left ventricle and interventricular septum The heart has two inferior chambers, called the right and left ventricles, respectively. These chambers are the “pumps” that expel blood into the blood vessels and keeps it flowing through the body (Rizzo, 2016). The left ventricle is a cavity that has thick muscular walls that contains the papillary muscles as well as the chordae tendinae that attaches the atrio-ventricular valve leaflets to the papillary muscles (Leeson, Augustine,…

States. Each year approximately 600,000 people die from these heart related diseases. Cardiovascular disease is something that can be acquired at birth or over a period of time due to genetics or lifestyle. There hundreds of different types of cardiovascular disease. Cardiovascular disease can be detected through a series of blood test, blood pressure, or even an electrocardiograph. Electrocardiographs record the electrical activity of the heart. The main purpose of this essay is to inform the…

The Cardiac Cycle The cardiac cycle is the sequence of events that occur in the heart during one heart beat. It is how the heart operates, and what exactly happens when it contracts and relaxes. The heart is equipped with four chambers and one-way valves that work with precision to pump blood to and from the body. The heart regulates blood volume to support efficient circulation to the cells, tissues, organs, and systems. It provides oxygen and nutrients to the bodies tissue while also…

Pathologic heart murmurs are the number one birth defect in infants. It affects 36,000 infants in the United States. Many children can die from it, but many children can also survive it. Infants can be born with it, and they can also develop the disease as they grow older, in this essay, we will explain to you the causes of heart murmurs, the treatment of heart murmurs, and the symptoms of heart murmurs. Pay attention, because your son can be born with this. Causes of heart murmurs Pathologic…

The term fibrillation is explained as a very rapid irregular contractions of the muscle fibers of the heart resulting in a lack of synchronism between heartbeat and pulse. There are two common fibrillations in the heart known as atrial fibrillation and ventricular fibrillation. While they are both fibrillations, ventricular fibrillation poses a far more fatal outcome than atrial fibrillation. This paper will be used to examine what causes the difference in these fibrillations and the difference…

one could see internally, the heart is pumping blood rapidly as well. This is known as the Cardiovascular System. It contains not only the heart, but also the blood vessels, blood and much more which will be further explained in greater detail. The venous system takes blood back to the heart. It flows from the capillaries to the veins. The biggest vein in the body is the inferior vena cava. The superior cava carries blood from the upper part of the body to the heart, however the inferior cava…

Echocardiogram is a diagnostic study that uses ultrasound waves transmitted through a transducer using a conducting gel to create an image of the heart. Ultrasound waves are cyclic in nature and at a frequency that are not audible within the parameter of human hearing (Fridman, V., 2013). The transthoracic approach provides visualization of the heart and its structures. Throughout TTE the ultrasound probe is positioned at various points on the chest wall and images are taken at each position.…