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WorksheetsHeart Circulatory System
Total questions: 15
Worksheet time: 15mins
Blood leaves the heart in two vessels, namely the:
Aorta and pulmonary vein
Pulmonary artery and aorta
Aorta and venae cavae
Pulmonary artery and pulmonary vein
A boy is bitten by a poisonous snake on his left leg. Poison gets to his heart through the:
Pulmonary vein
Left subclavian artery
Inferior vena cava
Hepatic portal vein
Which of the following contain deoxygenated blood?
Left ventricle
Pulmonary vein
Right atrium
Coronary artery
Identify
Pulmonary veins
Pulmonary artery
Aorta
Vena cava
Identify
Left atrium
Right atrium
Left ventricle
Right ventricle
What makes the "lub, dub" sound of a beating heart?
The ventricles contracting
The atria contracting
The opening and closing of heart valves
none of the above
The heart is made up of cardiac muscle tissue, which is "involuntary muscle."
True
False
An (a) carries oxygenated blood away from the heart.
A stronger heart beats "more" or "less" times per minute with the body at rest?
More
Less
Capillaries are the smallest blood vessels in the circulatory system.
True
False
How big is the heart ?
size of a clenched fist
size of a melon
size of a walnut
How many chambers does the heart have ?
2
4
6
Which part of the heart is responsible for pumping oxygenated blood to the rest of the body?
Left atrium
Right atrium
Left ventricle
Right ventricle
What is the primary function of the valves in the heart?
To pump blood
To prevent backflow of blood
To oxygenate blood
To filter blood
During which phase of the cardiac cycle does the heart fill with blood?
Systole
Diastole
Contraction
Ejection
