Structures of the Heart and Cardiac Cycle

Structures of the Heart and Cardiac Cycle

Multiple Choice

Which side is your heart situated on?

• Right

• Left

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How many layers are there of the heart wall?

Multiple Choice

Which structure reduces friction & maintains the hearts shape?

• Endocardium

• Pericardium

• Myocardium

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Which is the final layer of the heart wall?

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What are the top 2 chambers of the heart collectively known as?

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What are the 2 bottom chambers of the heart collectively known as?

Multiple Choice

Which chamber receives deoxygenated blood from the body?

• Right atrium

• Right ventricle

• Left ventricle

• Left atrium

Multiple Choice

Which chamber pumps blood around the body?

• Right atrium

• Right ventricle

• Left ventricle

• Left atrium

Multiple Select

Which blood vessels of the heart deal with deoxygenated blood? (select all appropriate answers)

• Vena Cava

• Aorta

• Pulmonary Vein

• Pulmonary Artery

Multiple Choice

Which blood vessel delivers deoxygenated blood to the lungs?

• Vena Cava

• Aorta

• Pulmonary Vein

• Pulmonary Artery

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Which blood vessel delivers oxygenated blood to the body?

Multiple Select

Which 2 valves are between an atrium and a ventricle?

• Tricuspid

• Pulmonary

• Aortic

• Bicuspid

Multiple Choice

Which valve prevents backflow of blood from the left ventricle to the left atrium?

• Tricuspid

• Pulmonary

• Aortic

• Bicuspid

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What are the chord-like structures that add strength to the valves and prevent them from turning inside out?

Multiple Choice

Which is stage of the cardiac cycle when the heart is contracting?

• Systole

• Diastole

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Pulmonary circulation is between the heart and which other organ?

Multiple Choice

Which node is situated in the top of the right atrium?

• AV Node

• SA Node

Multiple Choice

Which structure delays the electrical impulse going from the atria to the ventricles?

• Purkinje Fibres

• SA Node

• Bundle of HIS

• AV Node

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Which structure is beneath the endocardium and conduct the electrical stimulus that allows the ventricles to contract?