Explore key terms in microbiology and viruses with this medium-difficulty crossword puzzle. Perfect for homeschool families learning about germs, infections, and immunity.
Human Circulatory System Crossword Puzzle for Upper Elementary is a hard crossword puzzle with 12 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 Upper Elementary
Challenge upper elementary students with this hard human circulatory system crossword puzzle featuring advanced terms and concepts related to blood flow and anatomy.
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Across
- 1. Microscopic vessels where gaseous exchange occurs
- 3. Structures preventing backflow in veins and heart
- 6. Protein in red blood cells that binds oxygen
- 8. Heart phase when ventricles contract to pump blood
- 9. Vessels carrying oxygen-rich blood away from the heart
- 10. Relating to blood circulation between heart and lungs
Down
- 2. Upper heart chambers receiving blood from the body
- 4. The pale yellow fluid part of blood transporting cells
- 5. Another term for a red blood cell involved in oxygen transport
- 7. Heart phase when chambers relax and fill with blood
- 11. Heart chamber that pumps blood out to the body
- 12. Small veins that collect blood from capillaries
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