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Cardiovascular 9

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varaxibo's version from 2016-01-25 05:36

Section

Question Answer
What are the 4 Polarity changes in the cardiac cycle?1.Atrial Contraction (Neg->Pos) SYSTOLE 2.Atrial Relaxation (Pos->Neg) DIASTOLE 3.Vent Contraction (Neg->Pos) SYSTOLE 4.Vent Relaxation (Pos->Neg) DIASTOYLE
P wave isAtrial contraction Neg-->Pos
QRS wave isVentricular contraction
T wave isVentricular relaxation Pos-->Neg
Viewing an ECG strip, the wave will always be the sameshape and size
Cardiac cyscles areevenly spaced
The rhythm always originates whereSA nodes
Sinus Rhythmis SA intervals that are evenly spaced apart
RhythmSpacing or timing of successive Cardiac Cycles
memorize

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