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 18 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
Challenge your circulatory system knowledge with this medium-level crossword for grades 6-8. Includes key terms like arteries, capillaries, and plasma.
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Across
- 1. Another name for the mitral valve in the heart
- 2. Muscular organ that pumps blood through the body
- 3. Vessels that return blood to the heart
- 5. Protein in red blood cells that binds oxygen
- 8. Gas carried by blood to body cells for energy
- 9. Small vein that collects blood from capillaries
- 11. Small artery that leads to capillaries
- 14. The liquid part of blood that carries cells and nutrients
- 15. Blood vessels that carry oxygen-rich blood away from the heart
- 16. Type of circulation that moves blood between the heart and lungs
Down
- 4. CAVA Large veins that return blood to the heart from the body
- 6. Protective sac surrounding the heart
- 7. Red fluid that circulates through the body transporting oxygen and nutrients
- 10. Structures that prevent blood from flowing backward in veins
- 12. Tiny blood vessels where oxygen and nutrients exchange with tissues
- 13. Blood cells that carry oxygen using hemoglobin
- 17. The largest artery that carries blood from the heart to the body
- 18. Blood components involved in clotting
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