DNA and RNA are key to this puzzle that helps middle schoolers review basic protein synthesis terms like 'codon' and 'enzyme' with clear, simple clues.
Human Circulatory System Crossword Puzzle for Adults 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 Adults
Challenge yourself with this medium-difficulty crossword focusing on the human circulatory system. Perfect for adults and general audiences interested in biology and anatomy.
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Across
- 1. Rhythmic throbbing caused by blood flow in arteries
- 2. Structure that prevents backflow of blood in heart or veins
- 3. Lower chamber of the heart that pumps blood out
- 5. Place on the body where heartbeat can be felt
- 6. Smallest blood vessel where gas exchange occurs
- 8. Largest artery in the body
- 10. Liquid component of blood that transports cells
- 13. Cells responsible for oxygen transport (two words combined)
- 15. Blood vessel carrying oxygen-rich blood from the heart
Down
- 4. Vessels that return blood to the heart
- 7. Force exerted by circulating blood on vessel walls
- 9. Protein in red blood cells that carries oxygen
- 11. Blood cell fragment involved in clotting
- 12. Type of arteries supplying the heart muscle
- 14. Term relating to the heart
- 16. Upper chamber of the heart receiving blood
- 17. Phase when the heart contracts to pump blood
- 18. Gas transported by blood to body tissues
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