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WorksheetsCardiovascular System
Total questions: 15
Worksheet time: 16mins
Match the term to the definition
Prevents blood from flowing back into the atria when the ventricles contract.
Tricuspid and
bicuspid valves
When blood leaves this chamber of the heart, it heads out to the body.
Left ventricle
One of the body’s largest blood vessels that transports blood from the body region
below the diaphragm to the heart.
Inferior vena cava
When this chamber contracts it pushes blood through the tricuspid valve.
Right atrium
Initiates the action potential that causes the heart to beat.
SA node
Match the following terms to their definition
When blood leaves this chamber of the heart, it heads to the lungs.
Right ventricle
Stops blood from flowing back into the ventricles each time they contract.
Semilunar valves
Responsible for distributing electrical impulses throughout the heart.
AV node
This blood vessel splits in two and sends oxygen-poor blood to the lungs.
Pulmonary trunk
The chamber in the heart that receives oxygenated blood from the lungs.
Left atrium
________ are the smallest blood vessels with the _________ walls in order to
maximize diffusion of nutrients in and out of the interstitial fluid.
Capillaries; thickest
Capillaries; thinnest
Veins; thinnest
Arteries; thickest
________ carry blood towards the heart.
_______ carry blood away from the heart.
Blood traveling in the pulmonary circuit goes through the _________ side of the heart and out to
the _________.
Blood traveling in the systemic circuit goes through the ________ side of the
heart and out to the ________ .
Describe the unique property of pacemaker cells and
what they make possible in the heart.
Why is coronary circulation an essential process?
Coronary circulation supplies nourishment to the heart muscle.
Label the chambers of the heart
Right Atrium
Right Ventricle
Left Atrium
Left Ventricle
Where does blood enter the heart from the body?
Where does blood enter the heart from the lungs?
Which chamber forces blood to the lungs?
Which chamber forces blood to the body?
Label this structure
