Visit this site (http://openstaxcollege.org/l/heartvalve) to observe an echocardiogram
Chapter 19, Problem 1(choose chapter or problem)
Visit this site (http://openstaxcollege.org/l/heartvalve) to observe an echocardiogram of actual heart valves opening and closing. Although much of the heart has been removed from this gif loop so the chordae tendineae are not visible, why is their presence more critical for the atrioventricular valves (tricuspid and mitral) than the semilunar (aortic and pulmonary) valves?
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