
Cardiac Cycle
Flashcard
•
Science
•
University
•
Practice Problem
•
Hard
Elizabeth Wal
FREE Resource
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22 questions
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1.
FLASHCARD QUESTION
Front
T or F: mechanical activity always precedes electrical activity
Back
F: electrical activity always comes first, since the action potential stimulates contraction
2.
FLASHCARD QUESTION
Front
When does the aortic valve open?
Back
When the pressure of the left ventricle exceeds the aortic pressure
3.
FLASHCARD QUESTION
Front
What does it mean for the left ventricle to be isovolumic (isometric)?
Back
That when both valves of the left ventricle are closed that no changes in volume occur
4.
FLASHCARD QUESTION
Front
What is the P-wave on an ECG?
Back
Atrial systole
5.
FLASHCARD QUESTION
Front
When does the mitral valve open?
Back
When the left atrial pressure increases and exceeds the left ventricular pressure
6.
FLASHCARD QUESTION
Front
What is the QRS complex on a ECG?
Back
Depolarization of the left ventricle
7.
FLASHCARD QUESTION
Front
What is happening to ventricular pressure as the depolarization of the left ventricle is occurring?
Back
It is increasing, while the volume remains constant
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