The valves found at the bases of the aorta and the pulmonary trunk are called
Correct answer: C. semilunar valves
- A. bicuspid valves
- B. tricuspid valves
- C. semilunar valves
- D. atrioventricular valves
Explanation
Their three crescent shaped pockets fill with blood and snap shut when the ventricles relax, preventing backflow from the great arteries. The atrioventricular valves sit between atria and ventricles, a different position with different names.
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About Human Heart
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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