Chapter 13

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Across
  1. 2. this layer is NOT a part of the skin; it is made of fat cells and fibers
  2. 4. muscles associated with the heart are called ______ muscle
  3. 6. he study of organs and structures of the body
  4. 8. _______ changes to bone at the growth plates when you're done growing
  5. 9. this type of tissue lines the external and internal surfaces of your body
  6. 12. this is the hard white tissue covering a bone that forms new bone tissue
  7. 14. the circular layer found in mature bones
  8. 16. triceps and biceps are examples of this type of muscle
  9. 18. when the skin forms a callus or blister, it is the skin's way of _____ itself
  10. 19. the knee is an example of this type of joint
  11. 25. this type of joint is permanently fused together; Ex: skull, teeth
  12. 26. this essential nutrient is produced by our skin when exposed to sunlight
  13. 28. tissues are groups of _____ that work together to perform certain functions
  14. 29. when one muscles contracts, the opposing muscle ______
  15. 30. this is the body system formed by bones
  16. 31. two factors that contribute to the amount of melanin you have: _______ & environment
  17. 33. receives and transmits electrochemical impulses to coordinate the functions of your body; Ex: Brain, spinal cord, and nerves
  18. 36. these are muscles that you cannot control
  19. 37. these connect muscle to bone
  20. 38. Only ____ are made in the image of God
Down
  1. 1. the pigment that is responsible for much of the color of human skin
  2. 3. many different ethnic groups likely developed after the Tower of _____ incident
  3. 5. this layer of skin contains many blood vessels, nerves and hair follicles
  4. 7. _____ tissue is used to move substances throughout your body
  5. 10. the study of how organs and structures function
  6. 11. In the muscles cannot get enough oxygen, they begin to use ________ fermentation
  7. 13. the outermost layer of the skin
  8. 15. many organs can be classified in more than one _____ system
  9. 17. the human skeleton can be described as this type of system
  10. 20. all humans are part of _____ - we are all merely different shades of brown
  11. 21. skeletal muscles work in ______
  12. 22. this is found in the central cavity of many bones
  13. 23. voluntary muscles move the body by _____ bones
  14. 24. these are muscles that you can control
  15. 27. supports, connects, and protects other body structures; ex: Blood and bone
  16. 32. this system includes skin, hair and nails
  17. 34. this type of muscle would be found lining of blood vessels
  18. 35. these hold bones together