BONE
DEVELOPING BONE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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cartilage starts to calcify and periosteal bone collar forms
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the epiphyseal plates are ossified
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primary ossification centers form in the diaphysis
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hyaline cartilage develops and is a model
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Detailed explanation-1: -The cartilage between the primary and secondary ossification centers is called the epiphyseal plate, and it continues to form new cartilage, which is replaced by bone, a process that results in an increase in length of the bone.
Detailed explanation-2: -The osteoblasts form a collar of compact bone around the diaphysis. At the same time, the cartilage in the center of the diaphysis begins to disintegrate. Osteoblasts penetrate the disintegrating cartilage and replace it with spongy bone. This forms a primary ossification center.
Detailed explanation-3: -enlargement of cartilage in chondrocytes. blood vessels grow into shaft. fibroblasts migrate to bone center and differentiate into osteoblasts. bone enlarges. centers of epiphysis calcify. epiphysis fills with spongy bone. during puberty: cartilage production slows while osteoblast activity increases.