your host makes the mistake of taking a dark alley at night, is viciously stabbed and you end up being squirted out of the hole in his chest and onto the pavement. with a bit of luck, you either go down the drain to hang with the alligators, or you are collected as evidence by the detective investigating your hosts sorry demise. either way , a wild ride...
2006-10-05 07:16:50
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answer #1
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answered by migh 7
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The Right Atrium, receives "used blood" from the body. Blood will be pushed through the tricuspid valve to the Right Ventricle, the chamber which will pump to the lungs through the pulmonic valve to the Pulmonary Arteries, providing blood to both lungs. Blood is circulated through the lungs where carbon dioxide is removed and oxygen added. It returns through the Pulmonary Veins, which empty into the Left Atrium, a chamber which will push the Mitral Valve open. Blood then passes into the Left Ventricle. Although it doesn't always look like it in drawings done from this angle, this is the largest and most important chamber in the heart. It pumps to the rest of the body. As it pumps, the pressure will close the mitral valve and open the aortic valve, with blood passing through to the Aorta, where it will be delivered to the rest of the body.
2006-10-05 14:12:36
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answer #2
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answered by alwaysbombed 5
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The blood enters the right atrium from the vena cava has no oxygen in it, therefore it must be re-oxygenated. So, from the right atrium, the blood goes to the right ventricle where it is then pumped to the lungs to get re-oxygenated. From the lungs the blood travels to the left atrium where it is pumped to the left ventricle (largest lobe) and from there gets pumped back into the body (via the aorta) for use. Hope this helps.
2006-10-05 14:18:17
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answer #3
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answered by Lost_in_time 1
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I am a red blood cell.I decide not to embark on the wild journey and decide to stay at home.Cuz i dont know the directions.
2006-10-05 14:27:38
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answer #4
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answered by Mikillah 4
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Cardiovascular System
Navigation links
Blood and Blood Vessels
Introduction
Components of Blood
How Blood Clots
How Red Blood Cells Carry Oxygen
Blood Pressure
The Heart
The Heart (The Pump)
Blood and Blood Vessels
Introduction
Good Cardiovascular health is important in maintaining overall health and wellness. Cardiovascular Health is a new section, which will teach you how your heart and cardiovascular system work when healthy, and what happens when diseased. We will also explore disease prevention, therapeutic drug treatment, minimally invasive surgical procedures and open surgical procedures for treating diseases, which affect the heart and cardiovascular system.
The main role of the cardiovascular system in the body is to transport oxygen to all tissues in the body and for removing, from these same tissues, metabolic waste products. The system itself consists of the blood, the medium for exchanging oxygen, nutrients and waste products throughout the body, the blood vessels, the pipes through which the blood flows and the heart, the pump which forces blood to flow through the blood vessels. First, Lets take a closer look at the components of blood.
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Components of Blood
Health conscious individuals should be especially concerned with maintaining a healthy cardiovascular system. While the heart, which is a powerful automatic pump, is the cardiovascular component we think of most often, the blood and the blood vessels are also vital to maintaining good health.
The average adult has between 5 to 6 liters of blood or blood volume. The blood carries oxygen and essential nutrients to all of the living cells in the body, and also carries waste products to systems that eliminate them. Most of the blood is made up of a watery, protein-laden fluid called plasma. A little less than half of this blood volume is composed of red and white blood cells, and other solid elements called platelets.
Platelets are responsible for coagulation of blood at the point of an injury to a blood vessel.
Without platelets, our blood would not be able to clot and hemorrhaging or uncontrolled bleeding would result. Hemophilia is a genetic condition, which results in individuals with no ability to clot. Also called bleeders, these individuals must periodically administer a clotting factor to their blood to prevent the constant bleeding, which occurs.
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How Blood Clots
Let’s examine how platelets work to form clots. Here's a cut section of a small artery. The traffic going by includes red blood cells carrying oxygen; platelets, which come from white blood cell fragments; and clotting factors, which help the blood to clot. When a blood vessel becomes damaged, as shown here, the blood cells and plasma begin oozing out into the surrounding tissue. This begins the clotting process. Platelets immediately begin to adhere to the cut edges of the artery; they release chemicals to attract even more platelets. Eventually a platelet plug is formed, and the external bleeding stops.
Inside, the clotting factors take a much more active role by creating a cascade of clotting activity. The clotting factors cause strands of blood-borne material, called fibrin, to stick together and seal the inside of the wound. Eventually, the cut blood vessel heals, and the blood clot dissolves after several days.
While platelets play an important role in clotting, red blood cells carry on the important job of carrying oxygen and other nutrients to all the tissues of the body and carrying waste products to the organs, which remove them from the body.
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How Red Blood Cells Carry Oxygen
Red blood cells are the oxygen carriers. As they travel away from the heart, they traverse smaller and smaller arteries, finally arriving at the collections of microscopic blood vessels known as capillaries. Here, they exchange nutrients and oxygen for cellular waste products. The waste products are eventually eliminated from the blood stream through the urinary and respiratory systems.
The exchange of oxygen and nutrients between the red blood cells and the surrounding tissues occurs through a process called diffusion. In diffusion, when capillaries contain a high concentration of oxygen and nutrients, while the surrounding tissues contain a lower concentration, Oxygen and nutrients leave the capillaries and enter the tissues.
Conversely, when body tissues contain high concentrations of carbon dioxide and metabolic waste, while the capillaries contain a lower concentration, the waste products diffuse from the tissues into the capillaries and from there are carried by the venous system back toward the heart.
2006-10-05 14:16:13
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answer #5
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answered by Sky B 3
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next is right ventricle, pulmonary artery, lungs, pulmonary veins, left atrium, left ventricle, aorta.
2006-10-05 14:13:04
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answer #6
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answered by Jeanne 3
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Right atrium.
Off-ramp.
Starbuck's.
On-ramp.
Next stop... Atlantic City!
2006-10-05 14:18:42
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answer #7
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answered by Master_of_my_own_domain 4
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Do your own homework Willis.....
2006-10-05 14:17:11
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answer #8
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answered by Anonymous
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lol
2006-10-05 14:11:14
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answer #9
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answered by merna12101983 2
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