Essays Tagged: "Heart valve"

The Heart, It's Diseases, and Functions

IntroductionYou need your heart for all your body needs. It pumps about 2000gallons of blood a day. It takes about 20 seconds ... kes about 20 seconds for blood to reachevery cell in the body. An artery carries blood out from the heart. Avein carries blood back to the heart. An average adult heart weighs about10-13 ounces (300 t ... o the heart. An average adult heart weighs about10-13 ounces (300 to 350 grams). The rate which the heart pumps variesdepending on what your doing. When at rest the heart pumps more slowly.When you ru ...

(6 pages) 176 0 3.7 Feb/1997

Subjects: Humanities Essays > Health & Medicine

Circulatory System

ology is the course taken by the blood through the arteries, capillaries, and veins and back to the heart. In humans and the higher vertebrates, the heart is made up of four chambers the right and lef ... ers the right and left auricles, or atria, and the right and left ventricles. The right side of the heart pumps oxygen-poor blood from the cells of the body back to the lungs for new oxygen; the left ...

(6 pages) 164 0 4.3 Jan/1997

Subjects: Science Essays > Biology > Human Biology

Heart Valve Disease

Heart valves can have two main things wrong with them. Regurgitation is when the valve does not clos ... s, when the valve opening becomes narrowed or does not form properly, inhibiting the ability of the heart to pump blood to the body. Heart valves can have both malfunctions at the same time. When hear ... can have both malfunctions at the same time. When heart valves fail to open and close properly the heart can't pump blood to the body.In many cases, there is nothing you can do to prevent heart valve ...

(2 pages) 27 0 3.0 Mar/2004

Subjects: Humanities Essays > Health & Medicine > Diseases

Cardiac Valve Prostheses an itroduction

cardiopulmonary bypass. Since then, the achievements in valve design and the success of artificial heart valves, as replacements have been remarkable. [Roberts, 1976]. More than 50 different cardiac ... past 35 years. Unfortunately, after many years of experience and success, problems associated with heart valve prostheses have not been eliminated. The most serious problems and complications are:*Th ...

(19 pages) 88 1 5.0 Apr/2004

Subjects: Science Essays > Biotechnology

Heart disease and women with reference to "The Story of an Hour" by Kate Chopin.

Heart Disease and Women.Heart disease is not primarily "the Male" disease. Women can also die from r ... also die from related heart diseases such as Mrs. Mallard in "The Story of an Hour" by Kate Chopin. Heart disease and contributing risk factors such as smoking, diabetes, obesity, and high blood press ... , diabetes, obesity, and high blood pressure can cause the following problems: atheroma, congestive heart failure, heart valve problems, and eventually she would have to have a heart transplant.In the ...

(6 pages) 53 0 1.0 Nov/2005

Subjects: Science Essays > Biology > Human Biology

Case Study: Aortic Valve Stenosis

patient seems to be suffering from aortic stenosis (AS). AS is the narrowing or obstruction of the heart's aortic valve, which prevents it from opening properly and blocks the proper flow of blood to ... nd blocks the proper flow of blood to the aorta.Justification for diagnosis: Some ways in which the heart may not function properly are that it reduces the ability of valves to work properly and obstr ...

(2 pages) 13 0 0.0 Nov/2006

Subjects: Humanities Essays > Health & Medicine

Adults, Families and Society Module: Client Study (Based on the role of the District Nurse.)

leg. Arteries, veins, capillaries and the lymphatics. The arteries carry oxygenated blood from the heart to the capillary bed, where oxygen and nutrients are exchanged for carbon dioxide and waste pr ... are moved by a concentration gradient and active transport. De-oxygenated blood is returned to the heart through the venous system. The lymphatic network returns interstitial fluid and other plasma c ...

(12 pages) 113 0 5.0 Apr/2007

Subjects: Humanities Essays > Health & Medicine

Biology Homework

1) Blood enters the heart from the body through the large veins called the superior and inferior vena cava. This deoxyge ... the atrioventricular valve into the right ventricle. The right ventricle pumps the blood out of the heart pass a semilunar valve into the Pulmonary artery. Blood travels through the Pulmonary artery i ... artery into the lungs, where it is oxygenated and carried through the Pulmonary vein back into the heart. The blood comes in to the left atrium and is pumped pass another atrioventricular valve into ...

(7 pages) 31 0 0.0 Mar/2001

Subjects: Science Essays > Biology

Organ donation

ure your body in any way. It doesn't prevent you from having an open casket funeral. You can donate heart, lungs, kidneys, liver, pancreas, skin, bones, eyes, veins, and heart valves. More than ever, ...

(2 pages) 44 0 5.0 Feb/2008

Subjects: Humanities Essays > Health & Medicine > Diseases

The Heart And It's Function: Presentation

What is the heart?What does the heart do?When blood gets pumped, how does it know which way to go in your heart? ... heart do?When blood gets pumped, how does it know which way to go in your heart?What happens if the heart fails to pump blood?How can I keep a healthy heart?Your heart is a pump. Its walls are made of ... left of the middle of your chest, and it's about the size of your fist. You probably know what the heart looks like, but you’re probably wrong. The heart doesn’t look like a Valentine’ ...

(3 pages) 1973 0 0.0 Nov/2009

Subjects: Science Essays > Biology