Transcript Cardiovascular System

DE Science Elementary
“5-Minute Prep” For
Human Body
Systems of the Body
Cardiovascular
Cardiovascular System – The Big Ideas
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The heart and the blood vessels are the major parts of
the cardiovascular system.
The heart works like a pump without us thinking about
it, contracting and expanding, to send blood throughout
the body.
Blood circulates nutrients and oxygen around the body
and removes waste.
Arteries carry blood away from the heart while veins
carry blood to the heart.
Arteries and veins branch out into the smallest blood
vessels in the body called capillaries.
Cardiovascular System – Prior Knowledge
Students will have knowledge of some systems
of the body prior to this study. It will help for
students to use the Fun-damental to review the
Cardiovascular System. It will also help if they
are able to:
• Explain that the body is made up of systems.
• Name some parts of the human body.
Cardiovascular System –
Common Misconceptions
• Blood vessels end at a dead end.
Reality: Blood vessels are connected from
end to end allowing blood to flow throughout
the body and back to the heart.
• The heart is shaped like the one we see on
Valentine’s Day.
Reality: The heart is shaped more like an
upside down pear.
Cardiovascular System –
Using DE Science Content
When you close this presentation, you can review the
following recommended resources for the Cardiovascular
System.
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Reading Passage: Special Delivery!
Reading Passage: The Body’s Highways
eBooks: The Heart of the Matter
Video Segment: Heart and Circulatory System
Use the PowerPoint version of this presentation for hyperlinks
to these resources or you can get to them through the
browser or search feature.
Cardiovascular System – Instructional Ideas
• Read the reading passage, The Heart of the
Matter.
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Show students how to take their pulse.
Then, ask students to take their pulse while sitting.
Instruct students to do jumping jacks for 60 seconds.
Then, ask them to take their pulse again.
Next, ask students to sit for 60 seconds and take their
pulse again.
– Compare the numbers and discuss how exercise
increases the heart rate and how the heart rate
decreases with rest after exercise.
Cardiovascular System – Instructional Ideas
• Watch the Video Passage, Heart and Circulatory
System.
– Give each student a copy of a map of a metropolitan
area in or near your state.
– Show students how the large interstates feed into
local highways, which then feed into smaller roads.
– Ask students to trace the routes with their fingers.
– Stop along the way to discuss how this compares to
the circulatory system: arteries feed into smaller
arteries which feed into capillaries which feed into
veins which then feed into larger and larger veins until
they reach the heart.
State standards:
If you wish to review your state standards
regarding the Cardiovascular System, click here
to get to the curriculum standards search feature
of DES.
http://discoveryeducation.com/forward/curriculum.cfm
You can click on any standard to see what
resources are available to teach it.
Additional Information:
For additional content, check the Extend section
within the concept.