Heart valve

Cardiovascular Disease? (Heart & Blood Vessels) A heart and blood vessel disease (heart disease) is multiple problems within the heart one major one is called atherosclerosis. Atherosclerosis is a heart condition caused by a substance called plaque that build up on the walls of the heart arteries. This plaque buildup can narrow the hearts arteries making it harder for blood to flow through. When this problem starts to happen it can cause clotting which is able to stop blood flow and cause…

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 heart is pump blood to all the other organs, tissues and cells in the…

is when the AV closes and the semilunar valve closes. 2. Point D is at the S2 area. This is where the “dub” sound is made. This is the beginning of ventricular filling where the AV valves open. 3. At the end of the atrial systole, the ventricles have a maximum amount of blood that each can carry. The quantity of this is known as the end- diastolic volume. 4. In S2 is the occurrence of ventricular filling, when the semilunar vale closes and the AV valve opens. 5. Red Blood Cells have a…

Introduction Mitral valve regurgitation, also called mitral regurgitation, is a condition in which blood leaks from the mitral valve in the heart. The mitral valve is located between the upper left chamber of the heart (left atrium) and the lower left chamber of the heart (left ventricle). Normally, this valve opens when the atrium pumps blood into the ventricle, and it closes when the ventricle pumps blood out to the body. Mitral valve regurgitation happens when the mitral valve does not close…

Lab Objective: The purpose of part one of this experiment is to illustrate the relationship between the electrical activity of the heart and the sounds the heart creates. This experiment also analyzes a subject’s physical fitness by measuring the amount of time a subject requires to return to resting level heart rate. Hypothesis: When recording the electrocardiogram for each subject, we expect to see normal sinus rhythm between P wave, QRS waves, and T waves. P waves should be succeeded by…

Heart Murmurs and its Effect on the Body System Unusual or abnormal sounds that are heard during a heartbeat are referred to as heart murmurs. Murmurs can range from very faint to very loud and sometimes sound like a whooshing or a swishing noise. Although heart murmurs can be present at time of birth they can also be developed later in life as well. Heart murmurs are not diseases but can indicate an underlying heart problem. Normal heart beats usually make a “lub-dub” type of sound which…

Americans die every year from some sort of heart disease. A few of the major heart problems amongst Americans include: Coronary heart disease, irregular heartbeat (arrhythmias), congenital heart defects, weak heart muscles (cardiomyopathy), and heart valve problems. Adding to the risk, heart disease is often referred to as a “silent killer” because many of these conditions have no symptoms, leading to never having a doctor look closely. Coronary heart disease (CHD) is a chronic disease…

Valvular Heart Disease Luke White – C14367136 Introduction In this report I will discuss valvular heart disease. Firstly I will discuss the disease itself, what it is, what its symptoms are and what effect it can have on a person if it is left untreated. Then I will examine the role of the Clinical Measurement Scientist in the diagnosis, monitoring and treatment of this disease. I will then go on to write about the importance of professionalism as a clinical measurement scientist. This will…

the systemic circulation entering the heart into the right atrium from the superior and inferior vena cava. A chamber of the heart beats because of the electrical impulses located around areas of the heart that travel across the heart which allows the muscles to contract.The SA node located in the right atrium is also known as the pacemaker of the heart, this node conducts an electrical impulse that makes the right atrium contract causing the tricuspid valve to open and for blood to pass through…

Heart disease is the leading cause of mortality in the world with almost 25% of the deaths resulting from cardiovascular events or strokes. A particularly dangerous form of heart disease is mitral regurgitation (MR) which affects 200,000 people every year in the US alone. The Mitral valve is a key site of failure due to its location between the left atrium and left ventricle, it prevents the backflow of oxygenated blood into the atrium during ventricular systole and constantly experiences high…