This easy crossword puzzle helps kids in grades 3-5 learn about protein synthesis and DNA basics with common words and simple clues.
Human Circulatory System Crossword Puzzle for Middle School is a medium crossword puzzle with 19 clues covering . Play it online for free below, or create your own crossword with our free crossword maker.
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Human Circulatory System Crossword Puzzle for Middle School
Explore the human circulatory system with this medium-difficulty crossword puzzle designed for grades 6-8. Learn key terms like heart, arteries, veins, and oxygen.
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Across
- 1. Small vein that collects blood from capillaries
- 2. The area in the chest that contains the heart
- 3. The two upper chambers of the heart
- 5. Cell fragments that help blood clot
- 6. The largest artery in the body
- 7. The muscular organ that pumps blood throughout the body
- 8. Blood vessels that carry blood back to the heart
- 10. Red fluid that carries oxygen and nutrients in the body
- 13. Tiny blood vessels where oxygen and nutrients are exchanged
- 17. The liquid part of blood that carries cells and nutrients
- 19. Another name for the mitral valve in the heart
Down
- 4. The movement of blood through the body
- 9. Structure that prevents blood from flowing backward
- 11. Cells that help fight infections in the body
- 12. Gas transported by red blood cells to body tissues
- 14. Blood vessels that carry blood away from the heart
- 15. The two lower chambers of the heart
- 16. Type of circulation between the heart and lungs
- 18. Cells that carry oxygen using hemoglobin
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