1. 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 Skin Skeletal System Bones Muscular System Muscles

2. The smallest unit in the body

3. A cell

4. Groups of cells working together make…

5. Tissue

6. The outer layer of skin…this is where new skin cells are constantly being made and old ones are pushed off.

7. The Epidermis

8. This organ makes vitamin D, helps to maintain your body temperature, and keeps water and germs out!

9. Skin

10. Cells make tissues, tissues make… ___

11. Organs

12. Red blood cells bring ___ & ___ to all the cells in your body

13. Nutrients and oxygen

14. Number of bones in an adult

15. 206

16. Number of bones in a baby

17. 350

18. Name 3 jobs of the Skeletal System

19. 1.Framework for body 2. Protects vital organs. 3. Works with muscles to make us move 4. Makes blood cells

20. Blood cells are made here…

21. bones

22. These blood cells fight disease

23. White blood cells

24. Slippery material that cushions bones

25. cartilage

26. Mineral that makes bones strong and hard

27. Calcium

28. Bones are made of

29. Living cells

30. Place where two or more bones meet

31. joint

32. These muscles are attached to your bones.

33. Skeletal muscles

34. This body system makes you move!

35. Muscular System

36. To move, one muscle will______while the other one _____________

37. Contract/ relaxes

38. The muscle that makes up your heart

39. Cardiac

40. Muscles attached to bones are called…

41. Skeletal Muscles

42. Muscles that work without thinking…to help us breathe, digest food, pump blood

43. involuntary muscles

44. Muscles we control

45. Voluntary

46. Muscles that work automatically…you don’t have to tell them to move!

47. Involuntary

48. Three jobs Muscular System performs

49. 1.Moves our bodies. 2. Pumps blood (heart is a muscle). 3. Moves food down the esophagus. 4. Helps you breathe (diaphragm).

50. This system protects your organs, makes blood cells, and supports your body

51. Skeletal System