CV reading
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| where does the blood that is low in oxygen and high in carbon dioxide enter the heart? | enters through the right atrium
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| what is the valve called that passes through when it leaves the right atrium? | tricuspid vavle
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| after blood becomes oxygenated in the lungs, what are the vessels called that return it to the heart? | pulmonary veins
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| what chamber of the heart does oxygenated blood returning to? | left atrium
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| where does the blood go after it leaves the left atrium? | left ventricle
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| what is the name of the vessel that carries the oxygenated blood to the body? | aorta
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| what are the first two branches of the aorta called ? | right and left coronary arteries
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| what do the coronary arteries supply blood to? | tissue of the heart
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| what supplies oxygen and nutrients to the myocardium if a coronary artery is blocked? | collateral circulation
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| what is the enlarged vein that lies on the posterior surface of the heart? | cardiac veins
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| what is it called when the atria contract? | systole
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| what is it called when the ventricles contract? | diastole
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| a complete heart beat is also known as? | cardiac cycle
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| when pressure in the ventricles is low what valves open and allow the ventricles to fill with blood? | the A-V valve
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| how much blood enters the ventricles before it contracts? | 70%
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| what happens to the rest of the blood? | 30% of it is pushed into the ventricles
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| what are the atria doing when the ventricles are contracting ? | they are relaxing
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| what does the heartbeat heard through a stethoscope sound like? | lubb-dupp
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| when does the first part of a heart sound occur? | during ventricular contraction
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| when does the second part of the heart sound occur? | during ventricular relaxtion
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| what is the mass of merging cells called that function as a unit ? | functional syncytium
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| what two places in the heart contain this unit ? | atrial and ventricular syncytium
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| what connects the atrial and ventricular syncytium | cardiac conduction system
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Created by:
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