1. 200 300 400 500 100 200 300 400 500 100 200 300 400 500 100 200 300 400 500 200 400 600 800 1000 100 MUSCULAR SYSTEM SKELETAL SYSTEM CIRCULATORY SYSTEM RESPIRATORY SYSTEM Challenger

2. How many types of muscle tissue are there?

3. 3

4. There are approximately ___________ muscles in the human body.

5. 70,000

6. Name the three types of muscle tissue.

7. Skeletal (striated), Cardiac & Smooth

8. Skeletal Muscle is classified as both…

9. Striated & Voluntary

10. Cardiac & Smooth muscle are both.

11. Involuntary

12. There are __________ bones in the adult body.

13. 206

14. An adult has __________ bones than an infant

15. Fewer

16. Bones meet at

17. Joints

18. _______________ located in the center of the bones is where new blood cells are formed.

19. Bone Marrow

20. A disease in which bones become less dense and more likely to break.

21. Osteoporosis

22. The ________ is at the center of the circulatory system.

23. Heart

24. How many chambers are in the heart?

25. 4

26. The top chambers are called

27. Atria

28. The bottom chambers are called

29. Ventricles

30. A large artery that pumps blood to the entire body when it leaves the left ventricle

31. Aorta

32. Air is inhaled through the

33. Nose & Mouth

34. Is inhaled and then delivered to body tissues

35. Oxygen

36. A gas that is exhaled and exchanged for oxygen in the lungs

37. Carbon Dioxide

38. Also known as your wind pipe

39. Trachea

40. A muscle at the bottom of your chest that helps pull in and push out the air we breath

41. Diaphragm

42. When a muscle is doing work it___________ & when it lengthens it ________________.

43. Contracts & Relaxes

44. A connective tissue that connects bones to bones and the connective tissue located between vertebrae that acts as a shock absorber.

45. Ligaments & Cartilage

46. How does oxygen enter into the lungs?

47. Enters the nose & mouth Passes the epiglottis into the trachea Branches into Bronchi The bronchi branch out into little air sacs called Alveoli in the Lungs

48. Identify the parts of the respiratory system

49. Nose & Mouth Trachea Bronchi Bronchioles Alveoli Lungs

50. Explain the circulatory system and the path blood follows after the oxygen has been used during exercise.

51. Oxygen poor blood returns to the Right Atrium Then goes to the Right Ventricle where it is pumped to the lungs to exchange carbon dioxide for oxygen. The oxgenated blood goes to the Left Atrium. Then the Left Ventricle pumps the oxygenated blood out the aorta to the rest of the body