The Axial Skeleton

1. The Axial Skeleton Honors Anatomy & Physiology

2. Skeletal Divisions • 206 separate bones + cartilages • Axial Skeleton (80 bones) • Skull (22 bones) + 7 associated bones • Thoracic Cage (24 ribs + sternum) • Vertebral Column (26 bones) • Appendicular Skeleton (126 bones) • Limb bones • Pectoral and pelvic girdles

3. The Skull

4. Paranasal Sinuses: Mucosal lined air cavities that lighten the skull and resonate sound, mucusal secretions are released into the nasal cavity

5. Anterior View

6. Superior View

9. The Skull

10. ID the squamous suture • 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9

11. ID the squamous suture • 1 • 2 • 3 • 4* • 5 • 6 • 7 • 8 • 9

12. ID the lambdoid suture • 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9

13. ID the lambdoid suture • 1 • 2 • 3 • 4 • 5* • 6 • 7 • 8 • 9

14. ID the mastoid process • 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9

15. ID the mastoid process • 1 • 2 • 3 • 4 • 5 • 6 • 7* • 8 • 9

16. ID the greater wing of sphenoid bone • 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9

17. ID the greater wing of sphenoid bone • 1 • 2* • 3 • 4 • 5 • 6 • 7 • 8 • 9

18. ID the external acoustic meatus • 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9

19. ID the external acoustic meatus • 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8* • 9

20. ID the styloid process • 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9

21. ID the styloid process • 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9*

22. Newborn Skull

23. Id the Vomer • 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9

24. Id the Vomer • 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8* • 9

25. Id the alveolar margin • 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9

26. Id the alveolar margin • 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9*

27. Id the lacrimal bone • 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9

28. Id the lacrimal bone • 1 • 2 • 3 • 4 • 5 • 6 • 7* • 8 • 9

29. Id the zygomatic bone • 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9

30. Id the zygomatic bone • 1 • 2* • 3 • 4 • 5 • 6 • 7 • 8 • 9

31. Id the mental foramen • 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9

32. Id the mental foramen • 1 • 2 • 3 • 4 • 5* • 6 • 7 • 8 • 9

33. Which of the following bones does NOT contain a sinus? • Ethmoid • Nasal • Maxillary • Sphenoid • Frontal

34. Which of the following bones does NOT contain a sinus? • Ethmoid • Nasal* • Maxillary • Sphenoid • Frontal

35. Which of the following is NOT a fontanel? • Anterior • Mastoid • Posterior • Temporal • Sphenoidal

36. Which of the following is NOT a fontanel? • Anterior • Mastoid • Posterior • Temporal* • Sphenoidal

37. Hyoid Bone

38. The Thoracic Cage

39. The Vertebral Column • 7 Cervical vertebrae • Atlas C1 (yes) • No body • Axis C2 (no) • dens • 12 Thoracic vertebrae • Articulate with ribs • 5 Lumbar vertebrae • Largest • Sacrum and coccyx fused together

40. Atlas and Axis

41. Typical Vertebrae

42. Sacrum and Coccyx

43. Classwork • Write 1 paragraph explaining • Compare Scoliosis, Lordosis and Kyphosis • What are they • How treated • How compare • Include URL

44. ID the xiphoid process • 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9

45. ID the xiphoid process • 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8* • 9

46. ID coastal cartilage • 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9

47. ID coastal cartilage • 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9*

48. Id false ribs • 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9

49. Id false ribs • 1 • 2* • 3 • 4 • 5 • 6 • 7 • 8 • 9

50. How many thoracic vertebrae? • 2 • 3 • 5 • 7 • 12 • 24