Which of the Following Is True About Atrioventricular Valves

question 29

Multiple Choice

Which of the following is true about atrioventricular valves?

• A) One is found at the entrance to the pulmonary trunk.
• B) Their closing causes the second, shorter "dub" sound of the heartbeat.
• C) They are also known as the triscupid and bicuspid valves.
• D) One is found at the entrance to the aorta.
• E) They are composed of three half-moon shaped flaps.

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