EKG

Which letter(s) indicates the health of the ventricles?

• T-wave  
• S-T waves
• R wave 
• QRS

Which letter(s) indicates the health of the atria?

• QRS
• P-Q wave
• P wave only 
• T wave

The place where the electrical current starts and is considered the heart's pacemaker:

• Sino-atrial node 
• right atrium
• atria-ventricular node 
• left ventricle

The p-wave correlates with which event?

• atrium contraction /signals moving from SA node to AV node
• ventricle contraction
• ventricle repolarization
• both atrial and ventricle contraction

The AV node is located at...

• A
• B
• C
• D

The Purkinje fibers are located at...

• F
• G
• H
• I

What does depolarization result in?

• relaxation

• contraction

• repulsion

• attraction

What does re-polarization result in?

• relaxation

• contraction

• attraction

• repulsion

Tags

NGSS.HS-PS2-5

Where is the AV node located?

• A

• B

Where does atrial depolarization occur?

• A

• B, C, and D

• E

• C and D