Energy in the Human Body

A Middle School Life Science Curriculum

 
 
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Misconceptions

Circulation

• Open circulatory system in which the blood cells and plasma leave the vessels
• Blood outside of vessels
• Blood cells move through vessel walls
• Blood in arteries is red while blood in veins is blue
• Nutrient transfer between circulatory system and cells can take place through all vessels
• Heart makes the lungs move
• Heart receives air directly from throat or from lungs (no pulmonary circulation)
• Heart cleans the blood

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