Heart: Conduction System Flashcards Preview

Gross II Exam II > Heart: Conduction System > Flashcards

Flashcards in Heart: Conduction System Deck (11):

T/F: the conduction system of the heart is made up of nervous tissue?

False: no, just no


Which part of the conduction system is the natural pacemaker of the heart?

Sinuatrial Node


What is the general location of the sinuatrial node?

The upper end of the crista terminalis, near the junction of the right atrium and the superior vena cava


What is the general location of the atrioventricular node?

Within the septal wall

-above the opening for the coronary sinus in the right atrium


Teh atrioventricular bundle is divided into what?

1) Right Bundle Branch
2) Left Bundle Branch


What part of the conduction system of the heart enters the septomargial trabecula of the right ventricle?

Right Bundle Branch


With part of the atrioventricular bundle enters the paillary muscle of the left ventricles?

Left Bundle Branch


Where does the conduction system of teh heart begin?

With the sinuatrial node (SA Node)


After beginning with the SA node, the conduction system impulse travels where?

through the atrial wall until it reaches the atrioventricular node (AV node)


After eh AV node, the impulse travels where?

Through the atrioventicula bundle an its two branches to the subenocardial plexus of the conduction cells.


What if the terminal part of the conduction system?

Myocardium of the ventricles