Body Systems

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Across
  1. 4. a tube that is held open by C-shaped rings of cartilage; connects the larynx and the bronchi
  2. 6. the amount of energy it takes to raise the temperature of 1 kg of water by 1°C
  3. 7. the upper two chambers of the heart
  4. 10. muscle muscle found only in the heart
  5. 12. microscopic sacs or pouches at the end of the bronchioles where gas exchange occurs
  6. 15. a type of vascular tissue that carries dissolved sugars throughout a plant
  7. 16. a part of food used by the body to grow and survive
  8. 17. the mechanical and chemical breakdown of food into small particles and molecules that your body can absorb and use
  9. 21. a tubelike passageway at the top of the throat that receives air, food, and liquids from the mouth or nose
  10. 23. fingerlike projections, many of which cover the folds of the small intestine
  11. 24. strong body tissue that can contract in an orderly way
  12. 26. waves of muscle contractions that move food through the digestive tract
  13. 28. a group of similar types of cells that work together to carry out specific tasks
Down
  1. 1. a group of different tissues working together to perform a particular job
  2. 2. two narrow tubes that carry air into the lungs from the trachea
  3. 3. a series of chemical reactions that convert light energy, water, and carbon dioxide into the food-energy molecule glucose and give off oxygen
  4. 5. a vessel that carries blood toward the heart
  5. 8. a large muscle below the lungs that contracts and relaxes as air moves into and out of your lungs
  6. 9. a tiny blood vessel that delivers supplies to an individual cell and takes away waste materials
  7. 11. where two or more bones meet
  8. 13. muscle involuntary muscle named for its smooth appearance
  9. 14. the lower two chambers of the heart
  10. 18. a type of vascular tissue that carries water and dissolved nutrients from the roots to the stem and the leaves.
  11. 19. a thick, hard outer covering; protects and supports an animal’s body
  12. 20. a muscular tube that connects the mouth to the stomach
  13. 22. a vessel that carries blood away from the heart
  14. 25. the tissue that connects bones to other bones
  15. 27. the main organs of the respiratory system