Cardiac Cycle and Heart

Pumps the oxygenated blood to all parts of the body

• Right Ventricle

• Left Ventricle

• Right Atrium

• Left Atrium

Which valve is between the right atrium and right ventricle?

• tricuspid valve

• bicuspid/mitral valve

• pulmonary valve

• aortic valve

Which valve is between the left atrium and left ventricle?

• tricuspid valve

• bicuspid/mitral valve

• pulmonary valve

• aortic valve

Answer explanation

Remember the mnemonic - toilet paper my a$$.

Name this space.

• right ventricle

• left ventricle

• right atrium

• left atrium

Identify part numbers 3 and 5.

• 3: right atrium; 5: aorta

• 3: left atrium; 5: aorta

• 3: right atrium; 5: pulmonary artery

• 3: left atrium; 5: pulmonary artery

What vessels feed into the right atrium?

• vena cavae

• coronary sinus

• pulmonary truck

• aorta

• pulmonary veins

The emptying of the atria is controlled by the:

• SA node

• AV node

• Purkinje fibres

• Bundle of His

During the systole phase of the cardiac cycle, the ventricles....

• Contract

• Relax

During ventricular ejection

• only the AV valves open

• the semilunar valves open and the AV valves close

• only the semilunar valves close

• the semilunar valves close and the AV valves open

Define diastole

• when the heart is relaxing

• when the heart is contracting

• duration of the cardiac cycle

• frequency of the cardiac cycle