Aortic valve

contains four chambers the left atria, right atria, left ventricle and right ventricle which pump the blood throughout the body. (Martini, Tallitsch and Timmons, 550). Furthermore, within the heart, are four valves called the tricuspid valve, the pulmonary valve, the mitral valve and the aortic valve which is responsible for the flow of the blood (Texas). Through elaborating on these structures, it will further highlight the role of each to the whole function of the Cardiovascular…

blood that has O2 in it away from the heart under high pressure with a small diameter and it has thick muscular walls, and veins take the blood back to the heart under low pressure it has a medium thickness to it and a large diameter because it has valves to stop the blood flowing backwards. Capillaries is one cell thick so it can take the blood to and from the muscle tissue. Small arteries branch into even smaller vessels which are called arterioles, which channels the blood flow into…

of smaller VSDs is the formation of an aortic aneurysm and other defects (Minette and Sahn, 2006). Pathology of Ventricular Septal Defects In a healthy heart, blood wants to follow the pressure gradient set by the body, from areas of higher pressure to areas of lower pressure. The left ventricle controls systemic arterial…

They have enough force to push blood blood through the aortic valve and through your body even though it is about half an inch thick. There are many different types of valves located in the heart. The tricuspid valve manages blood flow between the right atrium and the right ventricle. The pulmonary valve regulates blood flow from the right ventricle into the pulmonary arteries, which take blood to your lungs for oxygen. Next, the mitral valve allows oxygen-rich blood from your lungs to…

has other problems, such as cancer, that would make him or her ineligible for a donor heart, can have an improved quality of life with a destination therapy LVAD (Trivedi et al., 2014). . A ventricular assist device cannot be placed if there is aortic insufficiency, mitral stenosis, impaired filling of the left ventricle, or intra-cardiac shunting (Wilson, Mudge, Stewart, & Givertz 2010). However, it is possible to correct these conditions during implantation surgery. A patient may be too…

Medical tools and operations have been advancing ever since the first human cut his or herself on a rock, whether the advancements have been significant or not. Through all of this time, scientists and doctors have been searching for answers to try and improve the health of the world’s population daily. What many people do not realize is although the cure for cancer has not yet been found, treatments for many other diseases have been and medical technology has come a long way. Every decade,…

Psychological Stress Test The acute psychological stress test we used was a ten-minute version of the Paced Auditory Serial Addition Test (PASAT) (Gronwall, 1977). This has been shown to reliably perturb both the cardiovascular system and salivary cortisol levels (Phillips et al., 2005, Phillips et al., 2006, Phillips et al., 2009) and demonstrate good test-retest reliability (Willemsen et al., 1998). In this task, the participants were presented, via a compact disc player, a series of single…

From the days of plain old balloon angioplasty by Andreas Gruntzig in 1977 the field of Interventional Cardiology has evolved to current era of transcatheter aortic valve implantation, revascularization of coronary chronic total occlusions and bioabsorbable vascular scaffolds. Despite the advances, one thing that hasn’t changed is number one cause of death, i.e. Cardiovascular disease. It still remains a challenge that has driven me to continue to learn pathophysiology and management of…

Hypertrophic cardiomyopathy (HCM) is the second most common form of heart muscle disease and is the number one cause of sudden cardiac death in young athletes. It affects approximately one in 500 adults in the United States. HCM is a genetically determined heart muscle disease caused by more than 1400 mutations in 11 or more genes encoding proteins of the cardiac sarcomere (Maron & Maron, 2013). HCM is characterized by left ventricular hypertrophy (LVH) of various morphologies with a wide…

1. What is the function of the septum? of the left side of the heart? of the heart valves? The function of the septum is to separate the two sides of the heart. The left side of the heart takes in oxygen rich blood, the the valves prevents back flow of blood to the heart. 2. What is the function of the right side of the heart? the function of the right side of the heart is to pump deoxygenated blood into the pulmonary veins around the lungs. 3. What are the major blood vessels that bring…