Bone Development & Growth

1. giant cells with 50 or more nuclei; take bone apart
5. Growth- this forms circumferential lamellae to the outer surface of long bones
7. cuboidal shaped cells that form bone
8. The part of the long bone that grows during development.
10. released by the Thyroid Gland
12. cartilage- type of tissue that makes up a skeleton of a 5 week old fetus
14. remodeling- A process in which a bone that becomes old is replaced with new bone
16. Ossification- Limbs, vertebrae, and hips are developed
17. forms around cartilage
18. mall pockets occupied by osteocytes, regularly arranged between the lamellae
19. the end part of a long bone, initially growing separately from the shaft.
21. Fracture- A break at the distal portion of the radius
23. Canal- the center of the osteon; contains blood vessels and a nerve
24. Fracture- Fractures within the epiphyseal region
27. Hormone- Maintains normal activity of the epiphyseal cartilage
28. Concentric rings made up of groups of hollow tubes of bone matrix
29. concentric circular rings around the central canal
30. the main or midsection (shaft) of a long bone

2. Plate- Area of cartilage near the metaphysis
3. Ossification- appears in the epiphysis
4. Ossification- appears in the diaphysis
6. mature bone cells that regulate calcium and occupy lacunae
9. bones- develop from layers of specialized connective tissue
11. Maintains normal activity in the epiphyseal region
13. bones- develop as hyaline cartilage that is later replaced by bone tissue
15. cells found in bone along the periosteum and endosteum
20. ossification- Clavicle, mandible, skull, and face are developed
22. little channels that radiate through the matrix of lacuna
25. Fracture- Occurs at the ankles and affects both the tibia and the Fibula
26. unmineralized bone matrix