circulatory system

WALKTHROUGH
CIRCULATORY SYSTEM
The structures of the human circulatory system move oxygen, nutrients, and waste
around the body by pumping blood through a network of vessels.
Pages
5
Inquiry points
Suggested time
7
15 min
1
Consider the blood vessels in your body and
what responsibilties they each carry out.
T...
Answers
T...
D
D
D
D
Measure and enter heart rate
1IP
Artery
2IP
• Capillaries
• Arteries
• Veins
2
Consider the differences between
deoxygenated blood and oxygenated
blood.
Answer
Select the heart
1IP
• Deoxygenated blood
• Oxygenated blood
Ask students why it is advantageous to have more veins closer to the surface
of the skin than arteries. Arteries must be protected, as it is easy to bleed to
death if an artery is pierced.
ACTIVITY: CIRCULATORY SYSTEM
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WALKTHROUGH
3
Consider the pathways oxygenated
and deoxygenated blood take through
the heart.
Answers
1IP
• Blue: 1, 2, 3, 6, 7, 8
• Red: 9, 10, 11, 14
Complete the activity with no
mistakes
to earn an extra inquiry point.
IP
1
4
Consider blood composition and the
responsibilities of the components.
Answer
1IP
• White blood cells
• Platelets
• Red blood cells
Explore this
Read about how to determine blood
type.
Have students write out a flow diagram
for the direction blood moves through
the body.
Vena cavae
right atrium
right
ventricle
pulmonary arteries
lungs
pulmonary veins
left atrium
left ventricle
aorta
smaller arteries
capillaries
smaller veins ...
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WALKTHROUGH
5
Consider the changes that occur to
blood circulation after exercise.
T...
Answers
T...
T...
Measure heart rate after exercise
T...
Any considered response on how
the respiratory system supports the
circulatory system during exercise
Talking point!
This is a good opportunity to discuss the effects of diet and exercise
on heart health.
Encourage students to research cardiovascular disease and how an
unhealthy diet and lack of exercise can contribute to the disease.
Students could write a meal and exercise plan to help minimise the
risk of cardiovascular disease.
ACTIVITY: CIRCULATORY SYSTEM
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|
intoscience.com