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Skeletal System

Skeletal System. Bone Classification by Shape. Anatomy of a Typical Long Bone. What tissue makes up articular cartilage? Describe the functions of the periosteum.

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Skeletal System

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  1. Skeletal System

  2. Bone Classification by Shape

  3. Anatomy of a Typical Long Bone What tissue makes up articular cartilage? Describe the functions of the periosteum.

  4. Bone TissueWhat is osteoid?Differentiate between the organic and inorganic components of the bony matrix (structure and function).

  5. Histology of Bone Tissue Which cells lay down fresh bone matrix? Which cells “recycle” bone matrix? Where are these cells located in bone tissue?

  6. Compact and Spongy Bone Tissue Organization Bones of the skeleton contain a combination of both types of bone tissue organization. Which region of the skeleton is the bone at left from? What type of bone marrow is found within the spaces of spongy bone?

  7. These notes are found on pages 163 & 164 in your course packet.

  8. Osteogenesis - 10 week fetus

  9. Osteogenesis - 16 week fetus

  10. Intramembanous Bone Formation Connective tissue on the surface of the developing bone forms the periosteum Ossification of membranes begins at the center of each model: Osteoblasts on inside of periosteal membranes form 2 thin layers of compact bone over the spongy bone.

  11. Endochondral Bone Formation How is it possible that blood vessels can invade the cartilage pattern if cartilage is avascular?

  12. Endochondral Bone Formation Connective tissue pattern

  13. Endochondral Bone Formation(continued) Differentiate between the primary ossification center and secondary ossification centers.

  14. From which embryonic germ layer are the tissues of bone derived? Which bone tissue organization do you think is stronger (and why): spongy bone or compact bone? Endochondral Bone Formation(continued)

  15. Bone Growth in Length Which joint is shown in the x-ray at right? Indicate the direction(s) of ossification in the x-ray. What factors influence the normal growth and maintenance of bone? (see page 164 of your packet)

  16. Bone Growth in Width

  17. Calcium Homeostasis

  18. Bone Fracture Repair Describe the roles of platelets and fibroblasts in the early stages of fracture repair. Where do the osteoblasts come from to form the bony callus?

  19. Bone Fracture Repair (cont’d) Describe how the repair of bone fractures is similar to embryonic bone formation?

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