Conduction System Notes

The pacemaker of the heart

• AV node

• SA node

• Bundle of His

• Bundle branches

The p-wave correlates with which event?

• atrial depolarization

• ventricle depolarization

• ventricle repolarization

• atrial repolarization

An electrocardiogram measures what?

• The amount of pressure exerted on blood vessels.
• The electrical activity of the heart.
• How many times the heart contracts over time.
• The body's temperature caused by friction of blood in vessel.

Tags

NGSS.HS-PS2-5

What is going on in the heart during the T-wave

• SA node triggers depolarization in atria
• AV node triggers depolarization in ventricle, the main pumpung action
• Delay caused by the SA node
• Repolarization of the ventricle 

Intrinsic electrical impulses start at which of the following locations?

• AV Node

• Bundle of His

• Purkinje fibers

• SA Node

Label the EKG Graph

a

b

c

QRS Complex

P Wave

T Wave

Where is the atrioventricular node?

(a)  

Where are the Purkinje fibers?

(a)  

Where is the bundle of His ?

(a)  

What fibres allow the ventricles to contract?

• SA
• AV
• Purkinje
• Bundle of His