Photomicrograph of the proximal end of a growing long bone. A

disc of hyaline cartilage-the epiphyseal plate-separates the more proximally located epiphysis from the funnel-shaped diaphysis located distal to the plate. The articular cartilage on the surface of the epiphysis contributes to the synovial joint and is also composed of hyaline cartilage. Whereas the cartilage of the epiphyseal plate disappears when lengthwise growth of the bone is completed, the articular cartilage remains throughout life. The spaces within the bone are occupied by marrow. x85.

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