Did you know that blood vessels can constrict or expand in response to extreme weather? The 27th video in a series of 47 about the human body viewers learn interesting facts about blood vessels. The narrator goes over the three layers of blood vessels and then moves into the different types: arteries, veins, and capillaries. He finishes by following the path of blood from the heart, through the body, and back to the heart. 

Concepts

blood vessels, arteries, veins, capillaries

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Additional Tags

science

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Instructional Ideas

• Before showing the video, ask for someone to explain bruises and why they form

Classroom Considerations

• Due to the speed at which the narrator speaks, turn on closed captioning to help all learners follow and understand the concepts
• Pause the video when you see colored pop-up boxes, as they contain related, interesting information

• This video is hosted on YouTube

Pros

• There are seven languages in which the video can be viewed using closed-captioning
• Video uses high-quality diagrams and images to engage viewers

 

Cons

• None

Common Core

RST.9-10.4