Aorta

Endovascular aortic repair (EVAR) is a less invasive treatment operation for patients with abdominal aortic aneurysms (AAAs). (1) The procedure involves the placement of an expandable stent graft within the aorta to treat aortic disease without operating directly on the aorta. Comparing EVAR with an open surgical procedure, it has been seen that in the first of these procedures, postoperative inflammatory response is attenuated. This accompanied with a technological improvement in stent graft…

Question: 4, 6 There are 78 organs in the human body in total, 12 organ systems, and 5 organs that are vital to our existence. Although the heart comes in at a close second to the most essential organ in our body (the brain), the role that it plays in or life is why it lands itself on the list of vital organs. So, what makes the heart so important to our survival? Located between the lungs and the middle of the chest the heart is no bigger than the size of a human fist. The main job of the…

pregnant mammal blood circulates in the following way: vena cava, right atrium, tricuspid valve, right ventricle, pulmonary semi lunar valve, pulmonary arteries, lungs, pulmonary veins, left atrium, bicuspid valve, left ventricle, aortic semilunar valve, aorta, systemic circulation, vena cava. Fetal circulation works by using three shunts to direct deoxygenated blood and avoid the not yet fully developed lungs and liver. The patent foramen ovale…

after several attempts the doctor determined this method wouldn 't work for this patient. The doctor then made the decision to access the iliac artery through the brachial artery. The wire was then fed into the heart and down the descending thoracic aorta and a catheter was then put into place. Upon injection of the contrast, it was visibly noticeable that iliac artery was blocked and calcified. Collateral circulation had developed rerouting the circulation using nearby minor vessels. Once the…

(1). It is often associated with not only other cardiac defects including atrial septal defect,patent ductus arteriosus (2), hypoplasia of the left heart and aorta (3) but also lung anomalies like congenital right pulmonary hypoplasia and anomalous blood supply of the right pulmonary lower lobe from the infra diaphragmatic segment of the aorta ( 4) . It is a very rare…

The Mechanics of the Heart An electrocardiogram, or EKG/ ECG, is a non-invasive test that measures the electrical activity of the heart and its electrical patterns. An electrical signal is sent through the heart to produce contractions that move the blood. This is what an EKG measures. In total that test may take from five to ten minutes and are ordered by a doctor to examine the heart more close. An EKG is done while the patient is lying down completely still (in order to reduce artifact or…

The heart is the organ that pumps blood through the body. Together with the circulatory system it makes up the cardiovascular system (Anatomy of the Heart, 2015). The heart is oddly shaped, almost oval at the bottom but with a series of veins and arteries at the top and sides. It definitely is not “heart” shaped. It is made up of four chambers consisting of two atria (upper) and two ventricles (lower). These chambers are separated into right and left side by the septum, which is a wall of muscle…

is when the ventricles are contracting, but the valves are closed. During this phase of the cardiac cycle, the pressure in both the ventricles are increasing, but the volume stays the same. When the pressure in the ventricle exceeds that of the aorta or arteries, the semilunar valves will…

supposed to live. The spirits gave Sweet Medicine four arrows, two for hunting and the other two for war.” (Richard Erdoes, “Life and Death of Sweet Medicine”). Bear Butte was also the site where Sweet Medicine joined the five bands of the Cheyenne. “The Aortas and the Eaters, who travelled southwest from the vicinity of the Mandan’s and were joined together at Bear Butte in the Black Hills by the prophet Sweet Medicine. The tribal…

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.…