The Heart Chap 20 Flashcards

1
Q

P wave

A

The beginning of the heartbeat. It corresponds to the spread of the AP over both atria

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2
Q

P-R interval

A

Measures the time for the impulse conduction from atria to ventricles

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3
Q

QRS complex

A

The impulse reaches the ventricular musculature. Shortly after the QRS complex the ventricles start to contract

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4
Q

S-T segment

A

During this interval the ECG registers zero, all the ventricular muscle is depolarized

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5
Q

T wave

A

Results from ventricular repolarization and occurs just before the ventricles start to relax

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