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mass transport
blood
circulatory system
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Cards (29)
What should you be able to describe by the end of the video?
The general structure of the human
circulatory system
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What are the functions of arteries, veins, and capillaries?
Transport blood throughout the
body
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Which arteries and veins must you name according to the AQA specification?
The arteries and veins serving the
kidneys
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What type of circulatory system do mammals have?
A
double circulatory system
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What is the blood like in the right side of the heart?
Deoxygenated
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What is the blood like in the left side of the heart?
Oxygenated
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How is the heart diagram oriented in the video?
The
right side
is shown on the
left
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Which organs are named in the diagram?
The
kidneys
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What happens to blood pressure in arteries during heart contractions?
It
increases
with each
contraction
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What is the term for the pressure of blood in arteries?
The pulse
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How does blood move in arteries between heart contractions?
It
continually
moves forward
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What is the only artery that carries deoxygenated blood?
The
pulmonary artery
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What is the name of the large artery that carries oxygenated blood to the body?
The
aorta
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How are individual arteries named?
Based on the
organ
they supply
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What arteries supply the kidneys?
The
renal arteries
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What are arterioles?
Blood vessels
that lead to
organs
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What are capillaries responsible for?
Gas exchange
between blood and cells
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What diffuses from blood to body cells in capillaries?
Oxygen
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What diffuses from body cells back into the blood?
Carbon dioxide
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What happens to blood pressure after passing through capillaries?
It is much
lower
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What are venules?
Larger
blood vessels
that collect blood
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What do veins carry towards the heart?
Oxygenated
blood from
organs
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What are the veins from the kidneys called?
The
renal
veins
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What is the blood pressure like in veins?
Relatively
low
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How do veins differ from arteries in terms of blood flow?
Blood in veins is not
surging
in pulses
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What is the name of the large vein that returns deoxygenated blood to the heart?
The
vena cava
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What is the exception regarding blood flow from the lungs?
It travels in the
pulmonary vein
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What type of blood is found in the pulmonary vein?
Oxygenated blood
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What is the relationship between the structure and function of blood vessels?
Structure depends on function
Arteries
: thick walls for high pressure
Veins
: thinner walls for low pressure
Capillaries
: thin walls for gas exchange
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