Cardiac Cycle and Heart

What part of the electrical conduction system is labelled A?

• SA Node

• AV Node

• AV Bundle

• Bundle Branches

• Purkinje Fibers

The pacemaker of the heart is also known as the....

• AV node

• SA node

• Purkinje fibres

• Bundle of His

The AV node is located at...

• A

• B

• C

• D

The chamber that receives oxygenated blood from the lungs

• Right Ventricle

• Left Ventricle

• Right Atrium

• Left Atrium

What number is representing the aorta?

• 1

• 2

• 3

• 4

• 8

 This triggers contraction in the atria

• SA node

• AV node

• QT node

• AV Bundles

 This triggers contraction in the ventricle

• SA node

• AV node

• QT node

• AV Bundles

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 

What fibres allow the ventricles to contract?

• SA

• AV

• Purkinje

• Bundle of His

What is another name for a mitral valve?

• bicuspid

• tricuspid

• aortic

• pulmonary

Answer explanation