Term
| 6. List the 5 functions of bone |
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Definition
- support
- protection
- leverage
- storage
- blood cell formation |
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Term
| 3. Name and describe the parts of a long bone |
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Definition
- epiphysis – ends of long bones (proximal and distal), cancellous bone covered w/ a thin layer of compact bone
- diaphysis – shaft of long bone
- epiphyseal plates (growth plates) – between the epiphysis and the diaphysis, the sites where the creation of new bone allows the bone to lengthen. When the bone reaches full size, the growth plates completely ossify (all of the cartilage is replaced by bone. |
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Term
| 2. Name the 4 types of bones |
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Definition
- long bones
- short bones
- flat bones
- irregular bones |
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Term
| 4. Name the 3 types of bone cells and their functions |
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Definition
- Osteoblasts – cells that form bone. They secrete the matrix of bone and then supply the minerals needed to harden it
- Osteocytes - . Once the osteoblasts have become trapped in the ossified matrix they have created they are called osteocytes
- Osteoclasts – are the opposite of osteoblasts. Instead of forming bone, they eat it away. Bones are dynamic structures that must be remodeled constantly. Osteoclasts are necessary for remodeling to take place by removing bone from where it is not needed, then the osteoblasts form new bone in area whrere it is needed |
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