Heart Sound & Conduction

The sounds made by the heart are due the contractions of the atria and ventricles.

• True

• False

The heart makes a LUB / DUB sound. What causes the DUB sound?

• Atria Contracting

• AV Valves Closing

• Ventricles Contracting

• SL Valves Closing

What is the volume of blood ejected from the ventricles during each contraction?

What is the delivery of blood to and from the heart itself called?

• coronary circulation

• pulmonary circulation

• systemic circulation

• cardiac circulation

What is the volume of blood ejected by the ventricle in one minute called?

• stroke volume

• cardiac cycle

• coronary volume

• cardiac output

What is one complete heartbeat called (systole & diastole)?

What part of the hearts conduction system is shown in the diagram?

• SA node

• AV Node

• AV bundle

• Purkinje Fibers

What part of the hearts conduction system is shown in the diagram?

• SA node

• AV Node

• AV bundle

• Purkinje Fibers

What part of the hearts conduction system is shown in the diagram?

• SA node

• AV Node

• AV bundle

• Purkinje Fibers

What part of the hearts conduction system is shown in the diagram?

• SA node

• AV Node

• AV bundle

• Purkinje Fibers