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Describe how long bones grow longer at an epiphseal growth plate?

Describe how long bones grow longer at an epiphseal growth plate?
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Bone deposition does not occur at articular region and epiphyseal plate. These regions contain catilagenous cells. The epiphyseal plate is also known as the zone of cartilage. It keeps the central shaft (diaphysis) and terminal growing region (epiphysis) separated. The epiphyseal plate multiplies continuously and forms longitudinal rows of cartilage cells. This newly formed cartilage gets deposition of calcium, gets converted into bone. Thus the bone grows in length.

When life is at younger stage, rate of multiplication of epiphyseal call is more than calcification. This process slows down as the age advances and gradually stops after age of 22-25. After this age, the epiphyseal plate gets calcified as the rate of multiplication gets overtaken by calcification, resulting in no growth of bones. These cells get ossified and stops growth.

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