S2W6 Cradiac cycle, ECG and Action potential (FS)

Created by: Tino Muronda
Created on: 15-03-21 10:30

What are the main phases of the cardiac cycle?

Atrial and ventricular systole and diastole

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What is the pathway of the cardiac conduction system?

Conducting cells transmit contractile stimuli to the myocardium
The cardiac conduction pathway consists of the SA node, the AV node and the conduction fibres of the bundle of His and the Purkinjie fibres.
SA node sets the rate of the heart and causes the

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What is the role of an ECG?

Measures the electrical activity in the heart
12 lead ECG records from 10 points on the chest
Records atrial and vemtricular repolarisation and depolarisation

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What are the main components of an ECG?

P wave - atrial depolarisation
QRS complex - ventricular depolarisation
T wave - ventricular repolarisation

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What are the phases of the cardiac action potential?

phase 4: Resting phase
Phase 0: depolarisation
Phase 1: early repolarisation
Phase 2: Plateau phase
Phase 3: repolarisation

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Other cards in this set

Card 2

Front

What is the pathway of the cardiac conduction system?

Back

Card 3

Front

What is the role of an ECG?

Back

Card 4

Front

What are the main components of an ECG?

Back

Card 5

Front

What are the phases of the cardiac action potential?

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S2W6 Cradiac cycle, ECG and Action potential (FS)