15: Heart as a pump Flashcards

1
Q

Frank-Starling mechanism

A

Equalizing outputs between right and left ventricles

Heart operates to the left of Lmax

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2
Q

Main force ventricles must overcome

A

aortic pressure

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3
Q

End systolic volume

A

low pressure
low volume
AV valves open

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4
Q

End diastolic volume

A

low pressure
high volume
AV valves close
Preload volume

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5
Q

Afterload

A

Semilunar valves open
High pressure
High volume
Pressure heart pumps against

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6
Q

ESV determined by

A

afterload and contractility

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