What is true about heart valves?
A) They enforce a one- way blood flow through the heart.
B) They operate passively (no active contraction required) .
C) They enforce a one- way blood flow through the heart, operate passively (no active contraction required) , and separate atria from ventricles, and ventricles from the large arteries that leave them.
D) They separate atria from ventricles, and ventricles from the large arteries that leave them.
Correct Answer:
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Q1: Blood vessels are color- coded on models
Q2: The shapes and the thickness of the
Q3: The portion of the pericardium that covers
Q4: Select the sequence that correctly describes blood
Q5: Cardiac muscle tissue_ .
A)has spindle- shaped cells,
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
Q11: The atrioventricular (AV)heart valves open and close_.
A)as
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