Heart's Conduction System

What is the pacemaker of the heart?

• AV node

• SA node

• Bundle of His

• Bundle branches

What does SA stand for?

• Sinoatrial

• Sinus attack

• Sanoatric

• Something awkward

What is another word for AV bundle?

• Bundle of HIS

• AV node

• Pacemaker

• Purkinje Fibers

Which is located within the walls of the ventricles?

• Purkinje fibers

• SA node

• AV node

• AV bundle and branches

Which is the correct path of electrical impulses through the heart?

• SA → Purkinje Fibers → Bundle Branches → AV
• SA → AV → Bundle Branches → Purkinje Fibers
• AV → SA → Bundle Branches → Purkinje Fibers
• AV → Bundle Branches → SA → Purkinje Fibers

Which of the following is a cardiac cycle?

• ventricular relaxation

• ventricular contraction

• equivalent to 1 complete heart beat

• a heart attack

How much blood does the average human have?

• 1 gallon

• 7 liters

• 4 liters

• 5 liters

What is the contraction phase of a hearbeat called?

• diastole

• sinoatrial

• systole

• atrioventricular

What is going on in the heart during the P 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 

What is going on in the heart during the R-wave or QRS complex

• 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