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Bones, Osteo & Artho
Bones, Osteomechanics and Arthokinetics
| Question | Answer |
|---|---|
| Physiology and structure of bones | calcified connective tissue consisting of osteocytes (bone cells) in a matrix of ground substance and collagen fibers |
| Long bones | longer than they are wide - include the clavicle, humerus, radius, ulna, femur, tibia, fibula, metacarpals and phalanges |
| Short bones | are found in the wrist and ankle and are shaped like cuboids |
| Flat bones | include ribs, sternum, scapulae and bones in the vault of the skull |
| Irregular bones | include bones of mixed shapes, such as bones of the skull, vertabra and coxal bones |
| Sesamoid bones | develop in certain tendons and work to reduce friction on the tendon, thus protecting from excessive wear |
| Osteokinematics | voluntary movements - flexion, abduction, rotation |
| Component motion | accompany active motion but are not voluntary - upward rotation of the scapula, clavicular rotation that occurs with shoulder flexion, rotation of the fibula that occurs with ankle motion |
| Arthokinematics | joint play between joint surfaces as well as distendibility "give" in a joint capsule (distraction, sliding, compression, rolling, spinning of joint surfaces) |
Created by:
Nlockhart
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