Skeletal System

1. Wrist bones
5. bone-forming cells
8. many vertebrae separated by carilaginous intervertebral discs
14. expanded portion at each end of a long bone, articulates with another one
16. tightly packed tissue that mainly composes the wall of the dyaphysis
17. small, rudimentary tailbone composed of four fused vertebrae, attached to the end of the sacrum
18. when extracellular matrix completely surrounds the osteoblasts
19. composed of the carnium and facial bones
22. forms concentric circles around central canals
24. the place where most of the ribs attach anteriorly
25. a specialized type of soft connective tissue that fills the spaces within the spongy bone

2. twelve pairs, articulate posteriorly with thoracic vertebrae
3. largely composes the epiphyses, consisting of trabeculae
4. formation of bone
6. Girdle formed by two hip bones attached to each other anteriorly and to the sacrum posteriorly
7. thin layer of cells that lines the medullary cavity as well as spaces within the spongy bone
9. brain case
10. numerous branching bony plates that make up spongy bone
11. shaft of the bone between epiphyses
12. process of blood cell formation
13. girdle formed by a scapula and a clavicle on both sides of the body. Connects the bones of the upper limbs to the axial skeleton and aids in upper limb movements
15. Arm Bone
20. tough covering of dense connective tissue, completely encloses the bone
21. five vertebrae fused near the distal end of the vertebral column, part of the pelvis
23. bone-resorbing cells that break down the calcified extracellular matrix