Cardiac Physiology

The AV node is located at...

• A
• B
• C
• D

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.

For a blood pressure reading, the number on top measures...

• Diastolic Pressure
• Systolic Pressure
• Diastemic Pressure
• Systemic Pressure

Which contract in unison??

• Top chambers, then bottom chambers.
• Right Chambers, then the Left Chambers
• All four chambers beat in unison.

The 'Dub' sound of the heart's LUB DUB? are the....

• Atrioventricular valves closing
• Semilunar Valves closing
• Blood flowing through the Pulmonary Trunk and Aorta
• Blood Flowing down into the venticles

The 'Lub' sound of the heart's LUB DUB? are the....

• Atrioventricular valves closing
• Semilunar Valves closing
• Blood flowing through the Pulmonary Trunk and Aorta
• Blood Flowing down into the venticles

What is the definition of the Cardiac Cycle?

• the contraction of the atria
• the sequence of events that occur during one complete heartbeat
• the contraction and relaxation of the ventricles
• the circulation of blood in the heart

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

• AV node
• SA node
• Purkinje fibres
• Bundle of His

What is the definition of the Cardiac Cycle?

• the contraction of the atria
• the sequence of events that occur during one complete heartbeat
• the contraction and relaxation of the ventricles
• the circulation of blood in the heart

The semilunar valves are only open during which phase

• atrial contraction and ventricular filling
• isovolumetric contraction
• ventricular ejection
• isovolumetric relaxation