Chapter 6 Introduction to the Human Body Lessons 3-6(6)

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Across
  1. 2. Your ___ is made up of 206 bones.
  2. 5. Complex living structures that grow, develop, and repair themselves.
  3. 9. Deep in the outer layer of skin or ____, new cells form.
  4. 11. your ____ is the center of your skeleton.
  5. 14. You have 27 bones in each ___.
  6. 15. Strong connective tissue that attaches muscle to a bone.
  7. 18. When you were born, most of your bones were ____.
  8. 19. Your ___ is made up of all the bones in your body.
  9. 21. The small spaces within ___ make bone lightweight but still strong.
  10. 22. Opening that allow sweat to reach the surface.
  11. 23. This system includes specialized cells that can attack and destroy viruses.
Down
  1. 1. The condition in which an organisms internal environment is kept stable in spite of changes in the outside environment.
  2. 3. These muscles are not under your conscious control.
  3. 4. This has two layers that protect the body.
  4. 6. The bones in moveable joints are held together by _____.
  5. 7. Your skin helps eliminate waste whenever you ____.
  6. 8. These muscles provide the force that moves your bones.
  7. 10. Bone has two types of soft connective tissue called ____.
  8. 11. Some skin cells produce this in the presence of sunlight.
  9. 12. The ___ bone contains minerals that give bones strength.
  10. 13. A pigment that colors the skin.
  11. 16. Skeletal muscles work in ____.
  12. 17. When you are cold your ___ system signals your muscles to make you shiver.
  13. 20. If your body needs more energy, hormones from the ___ system signal the nervous system to make you feel hungry.
  14. 21. This is the reaction of your body to possibly threatening, challenging, or uncomfortable events.