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Close up of blood circulation through the Lumbriculus worm (vertical view)

Contractions of the blood vessel cause blood to be pushed to the head. Movement of blood through the blood vessel is similar to pushing toothpaste out of a toothpaste tube.

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Classifications


Resource Type: Video
Audience Level: Middle school 6-8

Author and Copyright


Authors and Editors: Katie Hale of Biological Sciences, CSUF
Publisher: CSUF
Format: video/quicktime
Copyright and other restrictions: Yes
Cost: No

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