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chapter 6 01
| Question | Answer |
|---|---|
| long bone | arm & legs, larger than wide ex.femur,humerus,phalanges |
| irregular ends of long bone | distal & proximal epiphysis |
| Diaphysis | shaft of long bone |
| Medullary | center of long bone, contains bone marrow |
| bone tissue types | osseao tissue,compact bone |
| Short bone | cube shaped, ex.carpals,tarsals,patella |
| Flat bone | flat,curved ex.ribs,cranial |
| Irregular bone | fits no other catagory ex.vertabrae,facial |
| compact bone | hard,dense |
| Red marrow | ends of long bone,center of other bones function: makes blood cells |
| Yellow marrow | center of long bone, made of fat |
| Periosteum | outside of long bone,has blood vessels & nerves |
| Endosteum | lines marrow cavity function: growth & repair |
| Ossification | begins at diaphysis,converts cartilage to bone, months 2&3 in womb |
| Osteoblast | manufactur matrix, builders |
| Osteocytes | maintain bone matrix |
| Osteoclasts | reabsorb bone tissue, destroyers |
| Calcitonin | promotes bone formation |
| Parathyroid | promotes bone breakdown |
| Epiphyseals plates | across ends of bone,grows in length, hardens in 20's,resorption n formation throughout life |
| Axil skeleton | 80 bones of head n trunk, ex. skull,trunk |
| Appendicular skeleton | 126 bones of extremities, ex. arms & legs |
| Frontanels | soft spots |
| Articulations | joints union between two or more bones |
| Fibrous joints | fibrous connective tissue synarthrosis- immovable |
| Cartilaginous joints | cartilage, ex.pubic symphysis,intervertabrel joints. amphiatthrosis: slightly movable |
| Synovial joints | fliud lines joints ex. shouldrer joints,hip joints Diathrosis: freely movable |
| ligament | bone to bone |
| joint capsule | encloses joint |
| menisci n fat | padding around joint |
| brusae | sacks of synovial fluid surrounding joint |