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Exercise 7

Exercise 7. Axial Skeleton. Portland Community College BI 231. Bone Landmarks. All bones possess distinctive landmarks that are designed for specific functions. Review table 7.1. Axial Skeleton. Skull Spine Thoracic Cage Hyoid bone. Supraorbital ridge. Frontal Bone. Frontal Bone.

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Exercise 7

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  1. Exercise 7 Axial Skeleton Portland Community College BI 231

  2. Bone Landmarks • All bones possess distinctive landmarks that are designed for specific functions. • Review table 7.1

  3. Axial Skeleton • Skull • Spine • Thoracic Cage • Hyoid bone

  4. Supraorbital ridge Frontal Bone Frontal Bone Frontal Bone

  5. Zygomatic Bone Temporal Process Zygomatic Arch

  6. Maxilla Hard Palate

  7. Facial Bones

  8. Mandible Coronoid Process Mandibular Condyle Alveolar Process Ramus Angle Mental Foramen Body

  9. Facial Bones Middle NasalConchae (Ethmoid) Inferior Nasal Conchae Perpendicular Plate (Ethmoid) Vomer

  10. Ethmoid Bone Middle NasalConchae Perpendicular Plate

  11. Ethmoid Bone Cristae Galli Cribriform Plate Perpendicular Plate

  12. Ethmoid Bone Crista Galli Perpendicular Plate

  13. Orbit

  14. Coronal Suture Parietal Bone Frontal Bone Between the Parietal bones and the Frontal Bone Temporal Bone Occipital Bone

  15. Squamous Suture Parietal Bone Frontal Bone Between the Parietal bone and the Temporal Bone Temporal Bone Occipital Bone

  16. Lambdoid Suture Parietal Bone Frontal Bone Between the Parietal bones and the Occipital Bone Temporal Bone Occipital Bone

  17. Temporal Bone External Acoustic Meatus Zygomatic Arch Mastoid Process Mandibular fossa Styloid Process

  18. Temporal Bone Temporal Bone

  19. Occipital Bone

  20. Parietal Bone Parietal Bone

  21. Sagittal Suture Occipital Bone Between the Right and Left Parietal bones Parietal Bone (Right) Parietal Bone (Left) Frontal Bone

  22. Occipital Bone Occipital Condyles Foramen Magnum External occipital protuberance

  23. Palatine Bone Vomer

  24. Temporal Bone Carotid Canal Jugular Foramen

  25. Sphenoid Bone Sphenoidal Sinus Pterygoid Process

  26. CraniumFloor Anterior Cranial Fossa Middle Cranial Fossa PosteriorCranial Fossa

  27. Frontal Bone Frontal Sinus

  28. Parietal Bone Parietal Bone

  29. Temporal Bone Temporal Bone Temporal Bone

  30. Mandible Mandibular Foramen Mylohyoid Line

  31. Sphenoid Bone Lesser Wing Greater Wing Sella Turcica

  32. SphenoidBone Hypophyseal Fossa Dorsum Sella

  33. Sphenoid Bone Lesser Wing Greater Wing Pterygoid Process Lateral Pterygoid Plate Medial Pterygoid Plate

  34. Sinuses Ethmoid Air Cells Frontal Sphenoidal Maxillary

  35. Fetal SkullSuperior View

  36. Fetal Skull

  37. Wormian (Sutural) Bones Small islands of bone that fill gaps in sutures. Present in varying amounts

  38. Cervical Spine • 7 Vertebra • C1-C7 • Concave Posterior

  39. Thoracic Spine • 12 Vertebra • T1-T12 • Convex Posterior • Attach to the ribs

  40. Lumbar Spine • 5 Vertebra • L1-L5 • Concave Posterior

  41. Sacral Spine • 5 Fused Vertebra • “Sacrum”

  42. Coccyx • 4 Fused Vertebra

  43. Sacrum 5 Fused Vertebrae

  44. Sacrum Sacral Foramina

  45. Sacrum Sacral Promontory

  46. Typical structure of vertebra

  47. Intervertebral Foraminae

  48. Intervertebral Disk

  49. Annulus Fibrosus (Fibrocartilage)

  50. Nucleus Pulposus

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