Cell Organization and Intro to Organ Systems

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Across
  1. 4. Different types of tissues working together form a structure called an ________
  2. 5. _________ cells are long and have many branches (page 369)
  3. 7. The smallest unit of life
  4. 8. Groups of similar cells that all do the same sort of work
  5. 11. _________ cells are surrounded by a hard substance make of calcium and phosphorus (page 369)
  6. 12. Muscles are attached to bone through these bands of tissue
  7. 14. ____________ system: An example of an organ system, this one helps you breathe (page 373(
  8. 15. _________ cells are usually long and have many fibers that can contract and relax (page 369)
  9. 16. An example of an organ, it performs digestive functions (page 373)
  10. 17. ____________ system: The organ system that helps make all your daily movements possible
Down
  1. 1. The layer of cells directly below the epidermis
  2. 2. ____________ muscles are muscles that you cannot consciously control
  3. 3. A pigment (something that gives color) that protect your skin and gives it color
  4. 6. ____________ muscles are muscles you are able to control
  5. 9. _________ cells are mostly flat and close together and form a protective layer for your body (page 369)
  6. 10. The outer, thinnest layer of the skin
  7. 13. Organ ________: A group of organs that work together to do a certain job