the embryonic skeleton is first made of cartilage and ossification begins in the third month of gestation in the long bones, Long bones also develop centers of ossification at their epiphysis. Growth of long bones continues at the epiphyseal disc at the junction of the diaphysis(shaft) and epiphysis (end) An epiphyseal disc is still cartilage and more bone is produced on the epipysis side. On the diaphysis side osteoblasts produce bone matrix to replace this cartilage. Between 16 and 21 yrs of age,( influenced by testosterone or estrogen)all cartilage of the epipyseal discs is closed by bone and bone growth stops
2006-11-17 02:35:34
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answer #1
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answered by Anonymous
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The epiphyseal plate or more commonly refered to as growth plate is at both ends of every bone that you have almost. The bone grows from the middle out to the ends. The space at the end of the bones all the way untill you see the next bone is where your growth plate is. The bone just hasnt fully grown to connect to the other joint yet. Your growing stops between like around 17-20 yrs old. Some quicker, just depends on how your body is. The reason I know this is I take x-rays for a living. An injury to a growth plate should be treated as soon as you can to not slow down the normal growth cycles and should be monitored with comparison x-rays of the opposite extremity.
2016-03-19 09:56:35
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answer #2
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answered by Anonymous
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It's been forever and a day since I last studied or practiced. The epiphyseal plate don't account for growth in the way you're thinking. Just like the diaphysis, they're influenced by the growth hormone(s) and should everything go well, grow at a relative rate in relation to one another. The e.plate is essentially nothing more than cartilage at the joint end of a bone. It prevents bone on bone grinding. The diaphysis, is a tough, fibrous tissue surrounding the bone and is loaded with nerve tissue. When you break a bone, the bone itself does not cause you pain, it's the diaphysis.
You might try looking up Rockwood and Greens Vol. I.
2006-11-17 01:43:26
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answer #3
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answered by Doc 7
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Prior to adulthood, hyaline cartilage remains between the diaphysis and epiphysis as the epiphyseal plate, which is responsible for the lengthwise growth of long bones.
The epiphyseal line is the cartilage region between the epiphysis and diaphysis. The epiphyseal line allows lengthwise growth of a bone. Durring puberty the rapid growth in this region leads to height increase. After Puberty the epiphyseal plate ossifies into the epiphyseal plate, resulting in a stoppage of growth. If there is a fracture at the epiphyseal line durring puberty the cartilage can ossify into compact bone, resulting in a premature stoppage of growth.
2006-11-17 09:01:22
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answer #4
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answered by biology_nerd_76 2
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