1. The Skeleton System  Introduction  The Axial Skeleton  The Appendicular Skeleton

2. The Axial Skeleton  The Skull  Cranium  Face  The Vertebral Column  Cervical Vertebrae  Thoracic Vertebrae  Lumbar Vertebrae  Sacrum  Coccyx  The Thoracic Cage  Sternum  Ribs

3. The Axial Skeleton

4. Learning Objectives The Skull: The Skull:  Identify the bones of the cranium  Identify the facial bones The Vertebral Column: The Vertebral Column:  Identify the bones of the vertebral column The Thoracic Cage: The Thoracic Cage:  Identify the bones of the thoracic cage

5. The Skull Cranial Bones Cranial Bones Facial Bones Facial Bones

6. The Skull: Cranial & Facial Divisions

7. Cranial Bones Occipital bone* Occipital bone* Frontal bone* Frontal bone* Parietal bones Parietal bones Temporal bones* Temporal bones* Sphenoid bone* Sphenoid bone* Ethmoid bone* Ethmoid bone*

8. Skull To View 3-D Video:To View 3-D Video: –Move mouse cursor over slide title- link –When hand appears, click once MOV Video is interactiveMOV Video is interactive

9. Cranial & Facial Bones

11. Skull To View 3-D Video:To View 3-D Video: –Move mouse cursor over slide title- link –When hand appears, click once MOV Video runs 5 secMOV Video runs 5 sec

12. Cranial & Facial Bones

16. Skull Bones Skull Bones To View 3-D Video:To View 3-D Video: –Move mouse cursor over slide title- link –When hand appears, click once MOV Video is interactiveMOV Video is interactive

17. Cranial Sutures Coronal suture Coronal suture  btw/ frontal bone & parietals Sagittal suture Sagittal suture  btw/ parietal bones Lambdoidal suture Lambdoidal suture  btw/ parietals & occipital Squamosal suture Squamosal suture  btw/ parietals & temporals

18. Cranial Sutures

19. Suture Development

20. Infant Skull

21. Occipital Bone

22. Frontal Bone

23. Parietal Bones

24. Temporal Bones

25. Sphenoid Bone

26. Ethmoid Bone

27. Facial Bones Maxillary bones* Maxillary bones* Palatine bones* Palatine bones* Nasal bones Nasal bones Vomer Vomer Inferior nasal chonchae Inferior nasal chonchae Zygomatic bones Zygomatic bones Lacrimal bones Lacrimal bones Mandible* Mandible* Hyoid bone* Hyoid bone*

28. Cranial & Facial Bones

30. Facial Bones Facial Bones To View 3-D Video:To View 3-D Video: –Move mouse cursor over slide title- link –When hand appears, click once MOV Video is interactiveMOV Video is interactive

31. Maxillary & Palatine Bones

32. Vomer; Inferior Nasal Conchae; Lacrimals

33. Zygomatic Bones

34. Mandible

35. Hyoid Bone

36. Bones of the Orbit

37. Orbital Complex

38. Nasal Complex

39. Paranasal Sinuses Frontal sinusesFrontal sinuses –Frontal bone of cranium Maxillary sinusesMaxillary sinuses –Maxillary bone of face Sphenoid sinusesSphenoid sinuses –Sphenoid bone of cranium Ethmoid sinusesEthmoid sinuses –Ethmoid bone of cranium Palatine sinusesPalatine sinuses –Palatine bone of face

40. The Vertebral Column Cervical Vertebrae Cervical Vertebrae Thoracic Vertebrae Thoracic Vertebrae Lumbar Vertebrae Lumbar Vertebrae Sacrum Sacrum Coccyx Coccyx

41. Vertebral Column Vertebral Column To View 3-D Video:To View 3-D Video: –Move mouse cursor over slide title- link –When hand appears, click once MOV Video runs 5 secMOV Video runs 5 sec

42. Spinal Column Curvature

43. Vertebral Column & Rib Cage Vertebral Column & Rib Cage To View 3-D Video:To View 3-D Video: –Move mouse cursor over slide title- link –When hand appears, click once MOV Video is interactiveMOV Video is interactive

44. Vertebral Anatomy

45. Cervical Vertebrae: C1 – C7

46. Cervical Vertebrae Cervical Vertebrae To View 3-D Video:To View 3-D Video: –Move mouse cursor over slide title- link –When hand appears, click once MOV Video is interactiveMOV Video is interactive

47. Atlas & Axis Bones

48. Atlas & Axis Atlas & Axis To View 3-D Video:To View 3-D Video: –Move mouse cursor over slide title- link –When hand appears, click once MOV Video is interactiveMOV Video is interactive

49. Thoracic Vertebrae: T1 – T12

50. Thoracic Vertebrae Thoracic Vertebrae To View 3-D Video:To View 3-D Video: –Move mouse cursor over slide title- link –When hand appears, click once MOV Video is interactiveMOV Video is interactive

51. Lumbar Vertebrae: L1 – L5

52. Lumbar Vertebrae Lumbar Vertebrae To View 3-D Video:To View 3-D Video: –Move mouse cursor over slide title- link –When hand appears, click once MOV Video is interactiveMOV Video is interactive

53. Sacrum: Fusion of 5 Vertebrae

54. Coccyx: Fusion of 3-5 Vertebrae

55. Sacrum & Coccyx Sacrum & Coccyx To View 3-D Video:To View 3-D Video: –Move mouse cursor over slide title- link –When hand appears, click once MOV Video is interactiveMOV Video is interactive

56. The Thoracic Cage Costal Bones Costal Bones Sternum Sternum

57. Costal Bones True ribs True ribs  superior 7 pairs  attached to vertebral column & directly to sternum False ribs False ribs  inferior 5 pairs  attach to vertebral column; but, indirectly to sternum Floating ribs Floating ribs  last 2 pairs of false ribs  attach only to vertebral column

58. Thoracic Cage

59. Costal Bones

60. Sternum Manubrium Manubrium  superior  attached to clavicles & 1 st pair of ribs Body Body  breast bone  attach to rib pairs 2 – 7 via costal cartilage Xiphoid process Xiphoid process  attaches to diaphragm & abdominal muscles

61. Thoracic Cage

62. Vertebral Column & Rib Cage Vertebral Column & Rib Cage To View 3-D Video:To View 3-D Video: –Move mouse cursor over slide title- link –When hand appears, click once MOV Video is interactiveMOV Video is interactive