Bio 130 chpt 6

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  1. what ossification has initial bone formation in embryo begins within cartilage
  2. what ossification is replaced by bone
  3. what ossification uses cartilage as small model and bones grow in diameter and length
  4. what ossification and step is in shaft, where chondrocytes enlarge and matrix ossifies
    endochondral step 1
  5. what ossification and step has blood vessels grow around cartilage edge and osteoblasts form to create a superficial layer of bone
    endochondral step 2
  6. what ossification and step has blood vessels penetrate central region allowing entering fibroblasts to change into osteoblasts. primary ossification center
    endochondral step 3
  7. what ossification and step has medullary cavity created as cartilage is replaced by osseous tissue
    endochondral step 4
  8. what ossification and step secondary ossification center form as capillaries and osteoblasts migrate into epiphyses
    endochondral step 5
  9. what ossification and step has epiphyses fill with spongy bone, only articular cartilage and epiphyseal cartilage remain
    endochondral step 6
  10. what ossification and step does bone grow in length at epiphyseal cartilage
    endochondral step 7
  11. what ossification begins as mesenchymal cells that differentiate into osteoblasts within embryonic or fibrous connective tissue
  12. what ossification normally occurs in deeper layer of dermis (dermal bones)
  13. what ossification occurs in roofing bones of skull, lower jaw, collarbone, and sesamoid bones
  14. what ossification and step has mesenchymal cells secrete osteoid matrix and differentiate into osteoblasts
    intramembranous step 1
  15. what ossification and step has osteoid matrix that becomes mineralized and forms ossification center
    intramembranous step 2
  16. what ossification and step has bones grow out in small struts (spinules)
    intramembranous step 3
  17. what ossification and step has osteoblasts become trapped and mature into osteoclasts
    intramembranous step 4
  18. what ossification and step has blood vessels enter and become trapped in developing bone
    intramembranous step 5
  19. what ossification has spongy bone formed initially and remodeling around blood vessels forms osteons of compact bone
  20. what ossification has periosteum forms, lined with osteoblasts and begins at approximately 8th week of embryonic development
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Bio 130 chpt 6
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