Tricuspid valve is present_____________?
Correct answer: A. Between right atrium and right ventricle
- A. Between right atrium and right ventricle
- B. Between left atrium and left ventricle
- C. At base of pulmonary artery
- D. At base of aorta
Explanation
The tricuspid valve lies between the right atrium and right ventricle and prevents blood from flowing back into the atrium during ventricular contraction. Students may choose the left atrium and left ventricle because that pair also has an atrioventricular valve, but that valve is the bicuspid or mitral valve.
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The human heart is a four chambered muscular pump that maintains double circulation through the pulmonary and systemic circuits. Questions cover atria, ventricles, valves, major blood vessels, the cardiac cycle, pressure changes, the conduction system and ECG, while distinguishing arteries and veins from the chambers that receive or eject blood.
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