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 ESL Learners is a hard crossword puzzle with 8 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 ESL Learners
Challenge advanced ESL learners with this hard-level crossword on the human circulatory system. It includes specialized terms and technical vocabulary to deepen understanding.
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Across
- 1. Small vessels that collect blood from capillaries and deliver it to veins
- 2. Small branches of arteries leading into capillaries, controlling blood flow
- 4. Innermost lining of blood vessels composed of specialized endothelial cells
- 5. Rhythmic throbbing caused by pressure waves in vessels with each heartbeat
- 6. Another name for the mitral valve with two flaps between left heart chambers
Down
- 3. Phase of the heartbeat when the heart contracts pumping blood out
- 7. Instrument that measures changes in volume within an organ or body part to assess blood flow
- 8. The muscular middle layer of the heart wall responsible for contraction
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