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Bone Tissues
| Question | Answer |
|---|---|
| What is another name for bone marrow? | myeloid tissue |
| Where is the red bone marrow located within? | trabecular bone |
| Where is the red bone marrow primarily located? | in ends of long bones & in flat/irregular bones |
| What is the function of the red bone marrow? | hematopoiesis (blood cell formation) |
| Where is the yellow bone marrow located within? | the medullary cavity |
| Where is the yellow bone marrow primarily located? | medullary canal of long bones |
| What is the function of the yellow bone marrow? | fat storage |
| What percentage does the organic portion of the bone tissue make up of the total mass? | 35% |
| What makes up the organic portions? | bone cells and organic matrix |
| What are the names of the organic bone cells? | Osteocytes, osteoblasts, osteoclasts |
| What is the function of the organic matrix? | to make the bone a little flexible!! |
| What percentage does the inorganic portion of the bone tissue make up of the total mass? | 65% |
| What is the main component of the inorganic bone tissue? | Calcium & phosphorus salt compounds |
| What is the function of the inorganic bone tissue? | to give strength to the bone |
| What is another name for compact bone? | Cortical Bone |
| Why does the compact bone tissue have openings? | permits exchange of materials between osteocytes (& other bone cells) and the blood. |
| Cancellous (spongy) bone tissue | Trabecular Bone |
| How is material exchanged with cancellous bone? | diffusion |
| Where is spongy bone located? | ends of long bones & middle of flat, short, and irregular bones |
| When does trabeculae become more dense? | When there is more stress on the area |