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Skeletal system
Question | Answer |
---|---|
Long bones | Shaft called the diaphysis, has definite ends called the epiphysis Fingers, toes, arms, legs |
Short bones | Chunky and block shaped, no ends or shaft wrist, back of foot |
Flat bones | Make blood cells Hip, clavicle, scapula, ribs,cranium |
Irregular bones | Face bones, vertebrae |
Osteons | Set of osteocytes surrounding a central canal |
Haversian canal | Central canal needed to remove waste and provide nutrients |
Osteocytes | 2 types Osteoblasts-add calcium to the bone and Osteoclasts-take calcium out of the bone |
Lacunae | Fluid filled space around the cell |
Canaliculi | Connect lacunae back to the central canal |
Endochondral | Depositing calcium into cartilage |
Ossification | Process of hardening (the bone getting harder) |
Primary ossification center | The process of making the shaft turn into bone |
Secondary ossification center | The processes that grow on the bone |
Epiphyseal plate (growth plate) | The cartilage between ossification centers, the last cartilage to turn to bone, once gone the bone can no longer grow |