Question 17 1 pts Choose the answers that best complete the following sentence: Blood coming into the right atrium is initially stopped by the [Select] before opening when [Select], allowing blood to flow into the right ventricle. Then the right ventricle fills with blood coming from the atrium because [Select] stops the blood flowing out of the right ventricle, until the ventricle starts contracting, at which point the [Select]. Options: closed AV valve closed semilunar valve open AV valve open semilunar valve
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Blood coming into the right atrium is initially stopped by the closed tricuspid valve (AV valve). Show more…
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Please match the following structures with their function. Valve that closes during systole to prevent backflow of deoxygenated blood. Valve that closes during systole to prevent backflow of oxygenated blood. Mitral valve Right ventricle Valve that opens during systole Pulmonary valve Left atrium Chamber that fills with deoxygenated blood during diastole Alveoli-adjacent capillaries Coronary artery Chamber that fills with oxygenated blood during diastole Tricuspid valve Left ventricle Right atrium Deoxygenated blood first enters this chamber as it returns to the heart. Oxygenated blood first enters this chamber as it returns to the heart. Part of the systemic circulation Part of the pulmonary circulation
Adi S.
During ventricular systole (More than one answer may be correct. Choose all that apply) A) atrioventricular valves are closed B) semilunar valves are open C) atrioventricular valves may be open D) semilunar valves may be closed
When the ventricles contract, all of the following occur except: a. closing of the AV valves. b. blood ejecting into the pulmonary trunk and aorta. c. closing of the semilunar valves. d. opening of the semilunar valves.
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