Put the following in the order of events during one cardiac

Put the following in the order of events during one cardiac cycle Atrial Myocardium AV Bundle Branches AV Bundle AV Node Purkinjie Fibers SA Node Ventricular Myocardium What occurs during each of the following?

Solution

Answer :

Question number 8 : This picture is the electrocardiogram, which is the recording of the electrical activity of the heart. The instrument used to record thee changes is the electrocardiograph.

A : is the P wave which represents the atrial depolarisation which spreads from the SA node through the contractile fibers of the both atria.

B : QRS wave represents the rapid ventricular depolarisation, as the action potentials spreads through ventricular fibers.

C : T wave Represents the ventricular repolraisation and occurs just as the ventricles are starting to relax.