The atrioventricular (AV) heart valves open and close________.
A) as the circular muscles surrounding them operate
B) passively, depending on the pressure of the blood in the atria and ventricles
C) entirely differently from the mechanism used to operate the semilunar valves.
D) as papillary muscles and chordae tentinae pull them
Correct Answer:
Verified
Q6: What is true about heart valves?
A)They enforce
Q7: How many heart valves are there?
A)4
B)2
C)6
D)8
Q8: The heart is located in a subdivision
Q9: Which artery supplies the anterior ventricular walls
Q10: _is/are found in the ventricles, and attach
Q12: Which side of the heart receives blood
Q13: What is the name of the circuit
Q14: Which of the veins listed here drains
Q15: The pulmonary trunk and arteries are color-
Q16: The heart is called a double pump
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