Bone Crossword

1. _______ bone supports and protects the bone marrow
6. type of stem cell that becomes an osteoblast
8. In growing children the epiphysis housing the ______ ossification center
10. The kidney and this gland secrete calcitonin in response to high calcium levels in the blood
11. During the aging process osteoblast activity _________ while osteoclast activity remains constant.
12. There is a primary ossification center in the ________ portion of the bone
13. the outer and inner surface of the compact bone covered by periosteum
15. Lining the inside of the bone, the ________ is crucial to fracture repair.
19. In contrast to compact bone, spongy bone is located in areas of ______ stress
22. Parathyroid hormone increases calcium absorption in the ______ tract
23. Parathyroid hormone works to increase blood calcium levels by stimulating this type of cell in the bones.

2. Periosteum covers the _________ of the bone
3. lining the inside of the bone the _______is crucial in fracture repair.
4. This layer of bone can be contiguous with connective tissues at the joints.
5. This type of ossification occurs in the flat bones, such as the facial bones.
7. ________ fibers, in compact bone are thickest and strongest in the direction of stress, such as axillary loading in the femur
9. type of cell that absorbs and removes bone matrix
14. The process of Intramembranous ossification begins in this type of cell
16. Parathyroid hormone ___________ calcium excretion in the kidneys, thereby helping to increase overall blood calcium levels.
17. Osteoclast use enzymes and _____ to dissolve the matrix in osteolysis
18. This hormone will stimulate closure of the epiphyseal growth plate, therefore men are typically taller than women.
20. Patients on bedrest are at risk of losing bone ______ quickly.
21. Epiphyseal cartilage is another term for ______ plate