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23 Cards in this Set
- Front
- Back
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The apex of the heart lies _____ _______ _________, pointing toward the ______ lung.
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on the diaphragm,left
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The bicuspid or mitral valve is the valve between the _______ atrium and ______ ventricle
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left |
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The aortic semilunar valve is the valve that opens between the _______ ventricle and the ________.
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left , aorta |
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The pulmonary semilunar valve is the valve that opens from the _______ ventricle into the ________ _______.
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right, pulmonary artery
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The tricuspid valve is the valve between the ______ atrium and the _______ ventricle.
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right
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The first heart sound is caused by the closing of the ____ valve(s).
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AV |
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The second heart sound is caused by the closing of the __________ valve(s).
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semilunar
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Another name for “hardening of the arteries” is __________.
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atherosclerosis
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Which structure is known as the “pacemaker” of the heart?
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sinoatrial node
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Which structure is the part of the conduction system that actually makes the ventricles contract?
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purkinje fibers
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The T wave in an electrocardiogram results from ___________ of the ventricles.
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repolarization
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The P wave in an electrocardiogram results from _____________ of the atria.
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depolarization
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The QRS complex in an electrocardiogram results from depolarization of the ___________.
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ventricles
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A heartbeat that is less than 60 beats per minute is called _____________.
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bradycardia
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What causes heart failure?
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valve disorders, cardiomyopathy, cor pulmonale
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The atria are the _________ chambers of the heart and have _________ walls than the ventricles.
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upper, thinner |
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The ventricles are the _______ chambers of the heart, have _______ walls than the atria, and are called the ___________ chambers of the heart.
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lower, thicker, discharging
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The pericardium is made up of __ layers of fibrous tissue. The fluid between the layers of the pericardium helps to reduce the ________ caused by the beating heart.
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2, friction |
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Blood passing through the tricuspid valve has just left which heart chamber?
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right atrium
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Blood entering an artery has just left which heart chamber?
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ventricles |
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Blood returning from the lung enters which heart chamber?
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left atrium |
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Blood leaving the superior vena cava enters which heart chamber?
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right atrium |
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The sequence of an impulse moving through the conduction system of the heart is sinoatrial node, atrioventricular node, _______ ____ _____ and Purkinje fibers.
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bundle of his
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