Atrial Contraction Flashcards by Lady Bug

Q

Which valves are open during atrial contraction

A

AV valves

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Q

Which valves are closed during atrial contraction

A

Semi-lunar valves

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Q

Which valves start to close during atrial contraction

A

AV valves

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Q

at rest, what is ventricular filling like during atrial contraction

A

ventricular filling is largely passive

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Q

what percent do atrial contractions account for

A

10% (changes during exercise)

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Q

what happens to pressure after contraction during atrial contraction

A

pressure drops

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