Skeletal System

2. have greater length than width and consist of a shaft and variable number of ends
4. a thin membrane that lines the medullary cavity
5. a thin layer of hyaline cartilage covering the part of the epiphysis where the bone forms an articulation (joint) with another bone
7. mature bone cells that are the main cells in bone tissue and maintain its daily metabolism
9. consists of the bones that lie around the longitudinal axis of the human body
10. the site of the growth plate; once bone growth in length stops, the epiphyseal line is the bony structure that replaces the cartilage that was once present
13. consists mainly of adipose cells, which store triglycerides
16. cells that digest protein and mineral components of bone extracellular matrix (resorption) which is part of the normal development, growth, maintenance, and repair of bone
19. "soft spots" that are found between cranial bones at birth
20. bone-building cells
21. the distal and proximal ends of the bone
22. the removal of minerals and collagen fibers from bone by osteoclasts
24. the process by which bone tissue hardens
26. process of producing red blood cells, white blood cells, & platelets
27. regions in a mature bone where the diaphysis joins the epiphysis
29. have complex shapes and cannot be grouped into any other bone categories
30. the addition of minerals and collagen fibers to bone by osteoblasts
31. produces red blood cells, white blood cells, & platelets

1. loss of bone minerals
3. any break in a bone
6. an immovable joint, which in most cases in an adult holds the skull bones together
8. a hollow, cylindrical space within the diaphysis that contains fatty yellow bone marrow in adults -- also known as the marrow cavity
11. somewhat cube-shaped and nearly equal in length and width
12. the process by which bone forms
14. contains the bones of the upper and lower limbs, or appendages, that connect the limbs to the axial skeleton
15. unspecialized stem cells that are the only bone cells to undergo cell division
17. generally thin, provide considerable protection, & provide extensive surfaces for muscle attachment
18. contains few spaces and is arranged in repeating structural units called osteons
23. the bone's shaft or body -- the long, cylindrical, main portion of the bone
25. does not contain osteons; is composed of irregular latticeworks of thin columns of bone
28. a tough sheath of dense irregular connective tissue & its associated blood vessels that surrounds the bone surface wherever it is not covered by articular cartilage