Essays Tagged: "Artery"

Heart Attacks

rt attack is a sudden failure of the heart resulting from an occlusion or obstruction of a coronary artery. Basically, this means the heart is no longer receiving the blood supply it needs to function ... constricted for an extended period of time, ten or more years, arteries begin to close up. When an artery feeding blood to the heart closes up, the heart can no longer function. This results in a hea ...

(2 pages) 86 0 4.4 Nov/1996

Subjects: Humanities Essays > Health & Medicine

What causes cardiovascular disease?

ens and balloons out. Like a balloon, the aneurysm can eventually burst. If this happens in a major artery, such as the aorta, it can lead to massive bleeding and death.Arteriosclerosis can also upset ... curs in a blood vessel that feeds the heart, it is called a coronary thrombosis. If it occurs in an artery in the brain, killing brain tissue, it is called a cerebral thrombosis.A clot can also break ...

(4 pages) 197 0 4.8 Jun/2003

Subjects: Humanities Essays > Health & Medicine > Diseases

The movement cycle of the erythrocyte (or red blood cell).

o the aortic arch and on into the aorta. The cell then is pumped passed the opening to the coronary artery, which protrudes from the aortic root, and into one of the iliac arteries, which branch out t ...

(1 pages) 31 0 3.0 Oct/2003

Subjects: Science Essays > Biology > Human Biology

What makes up the cardiovascular system, and describe the components.How the cardiovascular system works and the effect of exercise on the cardiovascualr system

finally the Pulmonary valve which stops blood back flowing through the ventricle from the pulmonary artery.Deoxygenated blood enters the right atria from the superior and inferior vena cavae. The righ ... ight ventricle. The right ventricle then begins to contract and pushes this blood through pulmonary artery. The deoxygenated blood travels through this artery to the lungs where it becomes oxygenated. ...

(10 pages) 182 1 4.8 Jan/2004

Subjects: Science Essays > Biology > Human Biology

What is Coronary Heart Disease (CHD)?

est brought on by exertion and relieved by rest. A heart attack is due to obstruction of a coronary artery either as a result of arteriosclerosis or a blood clot: part of the heart muscle is deprived ... diagram shows the build up of a blockage in an artery. This is most due to the build up of colestral and fats that deposit on the wall of the arter ...

(7 pages) 182 0 3.0 Mar/2004

Subjects: Science Essays > Biology

Circulation in Humans, the purpose of this essay is to describe the physical anatomy of the heart, and the way in which circulation works.

ues, and pick up carbon dioxide for disposal by the lungs. Arteries take blood away from the heart. Artery walls are made of three layers, the innermost is the endothelial cells, followed by the endot ... e aorta, which is separated from the ventricle from a one-way valve (aortic valve). The aorta is an artery, which carries blood away from the heart, like all other arteries. Many other arteries branch ...

(3 pages) 92 2 3.3 May/2004

Subjects: Science Essays > Biology > Human Biology


ins, capillaries. The structures of all of these are well suited for the functions they perform.The artery is the first elastic tube that the heart pumps the blood through and around the body. The art ... and muscle layer, and the fibrous layer. All of these three layers are fairly large and making the artery very large in size. The structure of the artery is very well suited for its function because ...

(2 pages) 61 1 3.7 Jun/2004

Subjects: Science Essays > Biology > Human Biology

Research paper on stroke

ically two types of strokes, ischemic stroke and hemorrhagic stroke. Ischemic stroke occurs when an artery supplying blood to the brain becomes blocked and suddenly stops or decreases the amount of bl ... rombosis isStroke 2a formation of a clot in one of the cerebral arteries that stays attached to the artery wall until it grows large enough to restrict blood flow (Yannis 107). Ischemic strokes can al ...

(6 pages) 139 0 4.5 Jul/2004

Subjects: Science Essays > Biology > Human Biology


formation of a blood clot on the plaque's surface. If either of these occurs and blocks the entire artery, a heart attack or stroke could occur. This disease affects large and medium sized art ... stroke could occur. This disease affects large and medium sized arteries alike. The type of artery and where the plaque forms varies from person to person. This is a slow and progressive disea ...

(1 pages) 14 0 1.0 Aug/2005

Subjects: Humanities Essays > Health & Medicine > Diseases

Risk Factors of Cardiovascular Disease

cts of cardiovascular disease).SmokingSmoking deposits cholesterol in the arteries which may damage artery walls. Smoking also reduces the level of high-density lipoproteins (or HDL) in your blood. HD ...

(1 pages) 66 0 4.0 Nov/2006

Subjects: Humanities Essays > Health & Medicine > Diseases

Biology Homework

cle. The right ventricle pumps the blood out of the heart pass a semilunar valve into the Pulmonary artery. Blood travels through the Pulmonary artery into the lungs, where it is oxygenated and carrie ... d back to the heart. They have thinner and more flexible walls. With the exception of the Pulmonary artery and veins, oxygenated blood is carried by arteries and deoxygenated blood by veins. Capillari ...

(7 pages) 31 0 0.0 Mar/2001

Subjects: Science Essays > Biology

Hearts Function

.Connected to the heart we have tubes called blood vessels.There are 3 types of blood vessels: * An Artery (arteries) -Pulmonary Artery - Transports blood to the lungs.-Aorta - Transports blood to all ...

(2 pages) 12 0 0.0 Feb/2008

Subjects: Science Essays > Biology > Human Biology

How Heart Functions as a One Way Pump and Coronary Heart Diseases

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 ... tions 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 ...

(7 pages) 41 0 0.0 Mar/2010

Subjects: Humanities Essays > Health & Medicine > Diseases

Respiritory System

diastolic and systolic) and heart rate (pulse). The systolic pressure is the maximum pressure in an artery at the moment when the heart is beating and pumping blood through the body. The diastolic pre ... is beating and pumping blood through the body. The diastolic pressure is the lowest pressure in an artery in the moments between beats when the heart is resting. Both the systolic and diastolic press ...

(5 pages) 0 0 0.0 Sep/2014

Subjects: Science Essays

biology glossary

nt infectionPlatelets - Clot cutsPlasma - Carries the blood cellsValve - Prevents back-flow of bloodArtery - Carries blood away from the heart at a high pressure. Thick wallCapillary - Joins arteries ... om body, to heartVentricle - Each of the two main chambers of the heart, left and rightAorta - Main artery to the bodyPulmonary Artery - Artery to the lungsPulmonary Vein - Veins from the lungsHomeost ...

(2 pages) 2 0 0.0 Oct/2014

Subjects: Science Essays > Biology