what does atrium mean in science
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- atrium(Noun) An upper chamber of the heart that receives blood from the veins and forces it into a ventricle. In higher vertebrates, the right atrium receives blood from the superior vena cava and inferior vena cava, and the left atrium receives blood from the left and right pulmonary veins.
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- The left atrium is one of the four hollow chambers of the heart. It plays the vital role of receiving blood from the lungs via the pulmonary veins and pumping it to the left ventricle.Anatomy The left atrium is a small, hollow structure on the superior left side of the heart.It is separated from the right atrium by the interatrial septum and from the left ventricle by the bicuspid (mitral) valve.natomy The left atrium is a small, hollow structure on the superior left side of the heart. It is separated from the right atrium by the interatrial septum and from the left ventricle by the bicuspid (mitral) valve.
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Structure And Function Of The Heart Physical Education Essay The right atrium is the upper chamber of the right side of the heart. The blood that is returned to the right atrium is deoxygenated (poor in oxygen) and passed into the right ventricle to be pumped through the pulmonary artery to the lungs for re-oxygenation and removal of carbon dioxide.
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The Heart Right Atrium: The upper right chamber of the heart. During the normal cardiac cycle, theright atrium receives deoxygenated blood from the body (blood from the head and upperbody arrives through the superior vena cava, while blood from the legs and lower torsoarrives through the inferior vena cava).
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- Red blood cells: disk-shaped cells that carry oxygen and carbon dioxide. Right atrium: one of four chambers of the heart; pumps pumps oxygen-poor blood from the body in to the right ventricle. Right ventricle: one of four chambers of the heart; pumps oxygen-poor blood to the lungs via the pulmonary artery.
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Medical Dictionary Atria: The plural of atrium. Atrial: Pertaining to the atria, the upper chambers of the heart, as in atrial fibrillatio... Atrial fibrillation: An abnormal and irregular heart rhythm in which electrical signals ar... Atrial flutter: Well-organized but overly rapid contractions of the atrium of the heart (u... Atrium: An entry chamber. On both sides of the heart, the atrium is the chamber that leads... Atropine: A drug, made from the belladonna plant, that is administered via injection, eye ...
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- The chambers are known as atria and ventricles. Each side of the heart is composed of one atrium and one ventricle. The atria are the receiving chambers of the heart, receiving blood flowing back to the heart. The ventricles are the chambers of the heart that pump the blood out of the heart. The valves of the heart are located within the chambers of the heart and are critical to the proper flow of blood through the heart.
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Atrium [Anat] A cavity, entrance, or passage; as, the atrium, or atrial cavity, in the body wall of the amphioxus; an atrium of the infundibula of the lungs, etc. Etymology: L., the fore court of a Roman house
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Atria of the Heart The upper two heart chambers are called atria. Atria are separated by an interatrial septum into the left atrium and the right atrium. The lower two chambers of the heart are called ventricles. Atria receive blood returning to the heart from the body and ventricles pump blood from the heart to the body. The atria of the heart receive blood returning to the heart from other areas of the body.
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- The atrium (plural: atria) is one of the two blood collection chambers of the heart. It was previously called the auricle, but that name has now been in use as being synonymous with the right or left atrial appendage.
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- Atrium definition, Also called cavaedium. the main or central room of an ancient Roman house, open to the sky at the center and usually having a pool for the collection of rain water. See more. Dictionary.com
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auricle auricle (ô´rikəl), n 1. the oval flap of the external part of the ear. n 2. atrium, the chamber of the heart that receives the blood: on the right, from the general circulation, and on the left, from the pulmonary circulation.
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- the contraction, or period of contraction, of the heart, especially of the ventricles, during which blood is forced into the aorta and pulmonary artery. atrial systole. contraction of the atria by which blood is forced into the ventricles; it precedes the true or ventricular systole.extra systole.see extrasystole.he contraction, or period of contraction, of the heart, especially of the ventricles, during which blood is forced into the aorta and pulmonary artery. atrial systole. contraction of the atria by which blood is forced into the ventricles; it precedes the true or ventricular systole. extra systole. see extrasystole.
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Heart Structure - Anatomy & Physiology The left atrium forms the dorsocaudal section of the base of the heart and is similar to the right atrium in structure and shape. It receives oxygenated blood from the lungs via the pulmonary veins. Blood passes from the left atrium to the left ventricle through the bicuspid or left atrioventricular valve. The left atrium lies under the tracheal bifurcation and enlargement of this area of the heart can cause breathing difficulties.
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Definitions &Translations atrium(noun) any chamber that is connected to other chambers or passageways (especially one of the two upper chambers of the heart) atrium(noun) the central area in a building; open to the sky.
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Atrium (heart) Atrium (heart) The atrium is the upper chamber in which blood enters the heart. There are two atria in the human heart, which receive blood - the left atrium from the lungs, and the right atrium from the venous circulation. The atria receive blood, and when the heart muscle contracts, pump blood to the ventricles.
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- Illustration copyright 2000 by Nucleus Communications, Inc. All rights reserved. http://www.nucleusinc.comThe heart has four chambers: two atria and two ventricles. The right atrium receives oxygen - poor blood from the body and pumps it to the right ventricle.The right ventricle pumps the oxygen - poor blood to the lungs.
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Right Atrium The right atrium not only receives blood passively from the veins, but also actively pumps blood into the right ventricle. During the relaxation phase of the cardiac cycle, cardiac muscle in all of the chambers of the heart relaxes, allowing the chambers to increase their volume.
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Mediterranean Snow Peas (uses your location). 1  1 1/2 teaspoons butter. 2  1 clove garlic, minced. 3  1/2 teaspoon Italian seasoning. 4  1/2 pound fresh snow peas, trimmed. 5  1 tablespoon water, or more as needed. 6  1 tablespoon extra-virgin olive oil. 7  1 teaspoon fresh lemon juice. 8  kosher salt and ground black pepper to taste. 9  Add all ingredients to list. 10  Add all ingredients to list.
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The cardiovascular centre is a part of the human brain responsible for the regulation of the rate at which the Chambers of the Heart. The heart is composed of four well separated chambers. The two superior chambers are the atria (= entry halls) , and the two inferior chambers are the ventricles (= little bellies). The atria are the receiving chambers, they receive venous blood from systemic and pulmonary circulation and pump it down into the ventricles. The ventricles are the distributing chambers, they pump blood out of the heart into the peripheral circulation.
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- Princeton's WordNet(0.00 / 0 votes)Rate this definition: 1  atrium(noun) any chamber that is connected to other chambers or passageways (especially one of the two upper chambers of the heart) 2  atrium(noun) the central area in a building; open to the sky.
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Right Atrium The right atrium is one of the four hollow chambers of the interior of the heart. It is located in the upper right corner of the heart superior to the right ventricle.he right atrium is one of the four hollow chambers of the interior of the heart. It is located in the upper right corner of the heart superior to the right ventricle.
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- The noun ATRIUM has 2 senses: 1. any chamber that is connected to other chambers or passageways (especially one of the two upper chambers of the heart). 2. the central area in a building; open to the sky. Familiarity information: ATRIUM used as a noun is rare.
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- Relevance. Rating Newest Oldest. Best Answer: The right atrium collects deoxygenated blood cells in the blood from the body in the systemic circuit, and pumps it into the right ventricle where it passed into the pulmonary artery in the pulmonary circuit. The red blood cells then becomes oxygenated.elevance. Rating Newest Oldest. Best Answer: The right atrium collects deoxygenated blood cells in the blood from the body in the systemic circuit, and pumps it into the right ventricle where it passed into the pulmonary artery in the pulmonary circuit. The red blood cells then becomes oxygenated.
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Overview The heart valves — which keep blood flowing in the correct direction — are gates at the chamber openings. Normally, deoxygenated blood from all over your body enters the right atrium and flows into the right ventricle, where it's pumped through large blood vessels (pulmonary arteries) to your lungs.
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In Anatomy, what is the Auricle? In the Heart. When referencing the heart, the auricle typically describes part of either the left of the right atrium. The human heart is made up of four main chambers, two ventricles and two atria, one each on the left and right sides. Atria typically sit just above the ventricles and help process blood as it pumps.n the context of human anatomy, the auricle can refer to either one of two distinct body parts: the outer ear or an internal “pouch” or protective layer in the heart.