Heart: Conduction System

Question 1

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

Answer 1

False: no, just no

Question 2

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

Answer 2

Sinuatrial Node

Question 3

What is the general location of the sinuatrial node?

Answer 3

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

Question 4

What is the general location of the atrioventricular node?

Answer 4

Within the septal wall

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

Question 5

Teh atrioventricular bundle is divided into what?

Answer 5

1) Right Bundle Branch

2) Left Bundle Branch

Question 6

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

Answer 6

Right Bundle Branch

Question 7

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

Answer 7

Left Bundle Branch

Question 8

Where does the conduction system of teh heart begin?

Answer 8

With the sinuatrial node (SA Node)

Question 9

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

Answer 9

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

Question 10

After eh AV node, the impulse travels where?

Answer 10

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

Question 11

What if the terminal part of the conduction system?

Answer 11

Myocardium of the ventricles