How Heart Functions As A One Way Pump And Coronary Heart Diseases

1711 words - 7 pages

Heart, Coronary Heart Disease And Effects Of LifestylesHeart is the one of the most vital organs in the entire body. It delivers essential substances to the cells of the body by means of pumping blood through the blood vessels with repeated, rhythmic contractions through a one way system of valves. Unlike other muscles, cardiac muscles never get rest. So they need continuous blood supply in order to continue working. Coronary arteries are the specific arteries that supply nutrients and oxygen to the heart itself. However, arteries can be damaged by a condition in which plaque builds up inside the coronary arteries Plaque has made up of fat, cholesterol, calcium, and other substances found in the blood. Plaque narrows the arteries and reduces blood flow to your heart muscle. It also makes it more likely that blood clots will appear in arteries (n.a, 2009). Blood clots can partially or totally block blood flow. The condition in which plaque builds up inside the coronary arteries is called coronary heart disease. Coronary heart disease, also known as coronary artery disease, is one of the most common forms of heart diseases. Coronary heart disease is now the most common cause of death and a substantial source of chronic disability and health costs in the UK and all over the world. About 1 in 5 men and 1 in 6 women die because of this disease. Coronary heart disease cause 101 000 annually in the UK. As William Harvey demonstrated in 1628, blood circulates in one way round the body after being pumped by the heart with a one way system of valves. Mammalian heart is composed mainly of cardiac muscles which are specialised tissues that can contract automatically, powerfully and without fatigue through the life of the organism. Generally, all mammals and birds have double circulation. First circulation is called pulmonary circulation; from heart to lungs and the second circulation is called systemic circulation; from heart to the rest of the body. Animals like humans which involve double circulation must have a four chambered hearth. The chambers of the heart are named as right atrium, left atrium, right ventricle and the left ventricle. Deoxygenated blood flows through the right side and the oxygenated blood through the left side in the heart. The de oxygenated blood coming from the body is accumulated in the right side of the heart, and then it is pumped to the lungs by pulmonary circulation. This pumping process is essential for the re-oxygenation of the red blood cells. The blood goes back to the heart through the pulmonary vein and enters the heart from the left atrium. The contractions and relaxations of the heart, the blood is pumped to the rest of the body through the aorta which is the main artery. Blood leaves the heart through the arteries and gets back by the veins. The only artery that carries deoxygenated blood is the pulmonary artery and the only vein that carries oxygenated blood is pulmonary vein. Heart beat has four overlapping stages....

Find Another Essay On How Heart Functions as a One Way Pump and Coronary Heart Diseases

Coronary Heart Disease Essay

1355 words - 6 pages hospitals cardiac catheterization lab. Coronary artery disease is the most common type of heart disease. (2) It is also one of the top causes of death in men and woman in the United States. (2) Coronary heart disease is caused when a fatty like substance, called plaque, builds up around the coronary arteries of the heart. The buildup of plaque is called atherosclerosis and this condition develops over time normally due to poor diet and lifestyle. This

coronary heart disease Essay

1577 words - 7 pages countries the causes coronary heart disease According to Barker's hypothesis, he explain how the mother's exposure and metabolism can have an effect on the fetus health. He hypothesize the environment that the mother is exposed to prior to birth and during birth can have an effect on the fetus health as it gets older. As we know female is the one responsible for reproduction so the health of the mother can have a direct effect to the fetus. If the

Coronary Heart Disease

1045 words - 4 pages be minor chest pains, but could also result in a fatal heart attack. This is known as Coronary heart disease. People who suffer from CHD have at least one or more common factors, for example: high blood cholesterol, high blood pressure, smoking, diabetes and genetic inheritance which makes them more likely to suffer from heart disease.q Defects in the hearts structure, often from birthDuring pregnancy the fetus has a modified circulation, this is

Coronary Heart Disease

1498 words - 6 pages to the blood vessels, and allergic reaction to the dye. (3) Less common risks but more fatal are kidney damage resulting from the dye used, blood clots which could lead to a heart attack, and low blood pressure. (3) Coronary artery bypass grafting is a type of surgery done for CAD that uses the patient’s arteries or veins from other areas in the body to “bypass” the narrowed coronary arteries. (2) Benefits of CABG include better blood flow

Coronary Heart Disease - 636 words

636 words - 3 pages In the latest research, a study was based on the “dietary factors that were associated with Coronary Heart Disease risk factors.” Investigators hypothesized that healthy diet and exercise are absolutely connected with the risk factors of CHD. College students between the ages of 18 through 24 are usually recognized as really healthy students but in fact collegians are unaware of the risk factors of CAD. Being overweight, this is a very common

Coronary Heart Disease - 1447 words

1447 words - 6 pages lead to deposits in the arteries, which cause narrowing. High density lipoproteins (HDLs) on the other hand are beneficial as it transports cholesterol from places where there is too much to the liver where it can be disposed of. Much attention has been focused on the correlation between a high intake and the incidence of Coronary Heart Disease. Overweight and obese people are the most likely to be at risk especially

Coronary Heart Disease - 718 words

718 words - 3 pages Coronary artery disease, also referred to as coronary heart disease, as well as just heart disease affects over 12 million Americans on a national level making it the number one killer of Americans. I will explain the disease, its cause, its symptoms, and its known treatments, as well as any additional relevant information on the disease.Coronary artery disease is defined as when the arteries of the heart become clogged and narrowed, causing

Prevention of Coronary Heart Disease

2809 words - 11 pages vessel. The artery walls become weakened by plaque, if the weakness causes the artery to stretch the artery may rupture causing a haemorrhage known as an aneurysm. Coronary Heart Disease (CHD) CHD, also known as Ischaemic Heart Disease (ischaema - reduction of blood supply to a tissue) is a disease of the two coronary arteries supplying the heart muscles with oxygenated blood and nutrients. CHD causes damage

Heart (One Piece)

781 words - 4 pages a name." Her voice had no emotions - nor did it seem like she was stoic. Despise the lack of enthusiasm, Vegapunk found her voice to be euphony. "You do not have to call me master..." he pause, and attempted to find a name for the nameless one "...Kiseki." The robot still continued to stare blankly and still devoid of emotions. "Hai...Vegapunk." The said name didn't tense. "How are you feeling, Kiseki?" it seem like a silly question

Are statins an effective treatment for coronary heart disease?

1515 words - 7 pages 1.1 Identify the question and/or problem Cardiovascular Disease or CVD is the disease of the heart and circulatory system. The two main forms of CVD are Coronary Heart Disease (CHD) and stroke. CVD causes more than a quarter of all deaths in the UK, calculating to more than 161,000 deaths each year. Coronary Heart Disease (CHD) is the biggest disease people in the UK die from. 1 in 6 men and 1 in 10 women die from CHD. It is responsible for

Laughter: The Heart Healthy Way

1069 words - 4 pages Pennsylvania, researches concluded that students were more likely to have a positive mood when they “used humor as a coping mechanism” (Doskoch 32).John Morreall, Ph.D. explained the reason behind laughter’s affect on suicidal and depressed patients. “After you laugh, you go into a relaxed state. Your blood pressure and heart rate drop below normal, so you feel profoundly relaxed” (Doskoch 32).Perhaps the most beneficial aspect of

Similar Essays

The Heart, It's Diseases, And Functions

1396 words - 6 pages impulses. Oneof the four chambers, right atrium, contains group cells called sinusnode. The sinus node acts as a pacemaker, which produces electricalimpulses that signal the muscle of the heart to expand and to contractin the pumping cycle. The heart rate of a human can get up to 200 beatsa minute if you exert yourself. If something goes wrong with the sinusnode and normal pacing of heart is disturbed or bothered, one of a numberof rhythmic disorders

How Coronary Heart Disease Affects Life

2238 words - 9 pages Coronary artery disease (CAD), also known as coronary heart disease (CHD), describes a heart condition caused by impaired blood flow to the heart. In 2011, CAD affected around 1.4 million Australians, claimed the lives of over 21,500 Australians (14% of all deaths) and has an alarming mortality rate of 59 Australians each day (National Heart Foundation (NHF), 2007; NHF, 2005; Australian Bureau of Statistics, causes of death, 2009). People with

Coronary Heart Disease Essay

926 words - 4 pages patients who suffer with diabetes have different symptoms such as fatigue, shortness of breath, and weakness. All diseases have risk factors. Risk factors increase the chance of getting the disease or health condition. Some factors can be change but others can not. Changing the possible ones may help a patient live longer. Risk factors that can not be change are age, genes, and race. Age increases the risk of Coronary Heart Disease. Genes and

Coronary Heart Disease Essay 1651 Words

1651 words - 7 pages heart and carbon dioxide taken away as a waste gas) (2).From this it is easy to understand how it is incorrect to assume that you can get coronary heart disease just by your lifestyle. One can live a healthy life but old age can eventually cause damage the coronary arteries causing heart disease. In conclusion, from analysing the statement and researching coronary heart disease the idea of the heart disease is a self