4. Aortic Valve Aortic valve is the valve that separates the left ventricle with the aorta. Blood pressure changes on both sides of valve caused the valve can be opened and closed. The function of the aortic valve is to prevent blood flowing in the wrong direction. 5.
TASK 3.1 Write a report comparing and contrasting the structure and function of the three types of blood vessels. The Structure and Functions of Blood Vessels ARTERIES The walls of arteries contain smooth muscle fibre that contract and relax under the instructions of the sympathetic nervous system. The functions of the arteries are: transport blood away from the heart and transport oxygenated blood only.
The operation is performed in the chest cavity on the heart, with the septum and valves being reconstructed or replaced. The cardiovascular system is affected because this determines how well the heart is able to pump blood throughout the body. The surgical pathology of the atrioventricular septal defect repair procedure abnormal anatomy. This defect, which is created during gestation pre-birth, is considered
Pathophysiology The present of a patent foramen ovale is required to permit blood flow across the septum into the left atrium, the patent duct arteriosus allows blood to flow to the pulmonary artery into the lungs. VSD allows a modest amount of blood to enter the right ventricle &pulmonary artery. Thus pulmonary blood flow is diminished.
(1) This aortic stenosis lead to flow blood out of the heart and this disease is common to adults over 65 years old. The common symptoms of this disease can breathlessness, or chest pain, exercise restriction or collapse. (2) 2. What are the main differences between TAVI and convectional valve replacement techniques?
Perfusionists employ artificial blood pumps to propel open-heart surgery patients' blood through their body tissue, replacing the function of the heart while the cardiac surgeon operates. When a patient's blood is continuously removed and returned through plastic tubing to allow
The right ventricles only function is to pump blood into pulmonary circulation for the lungs, while the left ventricle pumps blood throughout the whole of the of the body. Describe the structure and function of the different valves within the heart: Tricuspid valve: This is found in-between the right atrium and the right ventricle. Pulmonary valve: This is found in-between the right ventricle and the pulmonary artery. Mitral valve: This is found in-between the left atrium and the left ventricle.
The heart is located at the center of the chest, and is surrounded by the ribcage and protected by the breastbone. The heart’s main function is to keep blood continually circulating throughout the body. Arteries are the vessels that supply the body with oxygen rich blood; on the contrary the vessels that return blood to the heart are called veins. Like any other muscle in the body, the heart depends on a steady supply of oxygen rich blood. The arteries that carry this blood supply to the heart muscle are called coronary arteries.
1. Explain the function of the heart, and the structure of the arteries veins and capillaries The heart is a key muscular organ, and is controlled by the autonomic nervous system. It transports blood to the body’s tissues via the circulatory system; blood provides the body with oxygen, nutrients and also assists in the removal of carbon dioxide and metabolic wastes, hormones are transported throughout the body by plasma. Arteries, arterioles, veins, capillaries and valves, are the blood vessels which are responsible for transporting the blood throughout the body.
The cardiac sphincter restrains reflux of flowing back of stomach substance into the esophagus. Food then leaves the stomach this is called chyme and then passed along to the small intestines, this process can take up to 2 to 4 hours. The small intestine is where the majority of digestion is originated. A pyloric sphincter regulates the rate
How the cardiovascular system works? Image result for the cardiovascular system heart without labels The cardiovascular system consists of two circuits that blood travels through; pulmonary and systemic. Exercise has an impact on these systems, causing the heart to pump blood faster around the body, which allows you to exercise for longer.
Systolic and Diastolic Heart Failure Heart failure occurs when the heart cannot pump enough blood for the body due to a weakened or damaged heart. The heart 's pumping action moves oxygen-rich blood as it travels from the lungs to the left atrium, then on to the left ventricle, which pumps it to the rest of the body. The left ventricle supplies most of the heart 's pumping power, so it 's larger than the other chambers and essential for normal function. (American Heart Association). In left-sided or left ventricular heart failure, the left side of the heart must work harder to pump the same amount of blood.
PULMONARY OEDEMA Introduction Pulmonary oedema is defined as the build-up of fluid in the lungs usually due to Left ventricular failure and also a result of non-cardiogenic complications (Deepak, 2010). In this essay the three main causes of oedema will be explained, the pathophysiology, the intensity factors and the management in a pre-hospital setting. Causes of Pulmonary Oedema The two main causes of oedema are cardiogenic and non-cardiogenic. Cardiogenic pulmonary oedema is defined as the build-up of fluid in the lungs usually due to Heart failure.
The words “venous thromboembolism” is broken apart into two separate words. “Venous”, or having to do with veins, refers to its direct capability of affecting veins, arteries, and other blood vessels. The blood clot will clog up the vein and will require surgery to clear the blockage. The word “thromboembolism” is a term given to the forming of a “thrombus”, the name for the blood clot that forms within the vein. Another term which is used frequently is “thrombosis” which is just another word for the blood clot forming deep inside a blood
Heart Valve disease is when you heart valves dont work the way they should. This is part of the cardiovascular system. Your heart valves lie at the exit of each of your four heart chambers and maintain one-way blood flow through your heart. The four heart valves make sure that blood always flows freely in a forward direction and that there is no backward leakage. Blood flows from your right and left atria into your ventricles through the open tricuspid and mitral valves.