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
2
Q
P-R interval
A
Measures the time for the impulse conduction from atria to ventricles
3
Q
QRS complex
A
The impulse reaches the ventricular musculature. Shortly after the QRS complex the ventricles start to contract
4
Q
S-T segment
A
During this interval the ECG registers zero, all the ventricular muscle is depolarized
5
Q
T wave
A
Results from ventricular repolarization and occurs just before the ventricles start to relax