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Quiz 1: The Conducting System of the Heart

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1. The following are true about sinus rhythm EXCEPT

The sinus rhythm is the intrinsic rate of the sinus node at 60-100 beats per minutes
The sinus rythm can be regular in both the normal and abnormal heart
The rate is influence by parasympathetic innervation
The duration of time from the start of the P-wave to the end of the T wave is 0.12 sec
All of the above statements are true

 

 

 

2. The following are true about the conducting system EXCEPT

The right bundle branch runs towards the base of the anterior papillary muscle of the right ventricle
The conducting system emerges from the AV node as the bundle of His.
The AV node is considered supra-ventricular
The Purkinje fibers branch from the bundle of His to deliver the electrical impulse to the ventricles
 
 
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Last Updated: 01/03/00.
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