Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
bone vocab
Exam 5 vocab
| Term | Definition |
|---|---|
| osteoclastic crypts (Howship's Lacunae) | shallow depressions where osteoclasts are |
| osteolysis | erosion process from osteoclasts |
| perforating (Sharpey's) fibers | the collagen fibers incorporated into bone tissue from tendons and ligaments |
| endochondral ossification | bone replaces existing cartilage |
| intramembranous ossification | bone develops directly from mesenchyme or fibrous connective tissue |
| epiphyseal closure | the completion of the epiphyseal plate |
| appositional growth | a bone increasing in diameter |
| calcium and phosphorus | normal bone growth and maintenance cannot take place without this dietary source |
| calcitriol and d3 | synthesized in the kidneys aid in the digestive tract |
| vitamin c | key for an enzymatic reaction in collagen synthesis; stimulates osteoblast differentiation |
| vitamin a | stimulates osteoblast activity; important for normal bone growth in children |
| vitamin k and b12 | synthesis of proteins in normal bone |
| growth hormone | pituitary gland; stimulate bone growth; protein synthesis and the rates of cell division and cell growth throughout the body |
| thyroxine | thyroid gland; stimulate bone growth; stimulates cell metabolism and increases rate of osteoblasts activity |
| sex hormones(estrogen and testerone) | stimulate osteoblasts to produce bone faster than the rate at which epiphyseal cartilage expands, leading to epiphyseal closure |
| parathyroid | parathyroid glands; stimulates osteoclasts; increases blood calcium ion level |
| calcitonin | thyroid gland; decreases blood calcium ion and may aid calcium ion transfer to the fetus |
| osteomalicia | bones appear normal but are weaker and flexible due to poor mineralization |
| transverse fractures | break in the long axis of the bone |
| displaced fractures | produce abnormal bone alignments |
| compression fractures | vertebral fractures due to extreme force |
| spiral fractures | produced by twisting forces that spread along the length of the bone |
| epiphyseal fractures | a fracture along the growth plate |
| comminuted fractures | bone shatters into many fragments |
| greenstick fractures | one side of the shaft fractures and the other side bends |
| colles fracture | a break in the distal radius |
| pott's fracture | a break affecting the lateral malleolus of the fibula and the medial malleolus of the tibia |
| stress fracture | a crack that develops in a bone due to repetitiveness |
Created by:
Mmack15