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Schematic diagram, showing epiphysis and diaphysis and line of ossification. Labels: Ep, epiphysis of endochondral bone; zpt, zone of proliferation; zc, zone of calcification; ca, cartilage.

Bone Ossification

Schematic diagram, showing epiphysis and diaphysis and line of ossification. Labels: Ep, epiphysis of…

Longitudinal section of ossifying cartilage from the humerus of a fetal sheep. Calcified trabeculae are seen extending between he columns of cartilage cells (c).

Ossifying Cartilage Showing Calcification

Longitudinal section of ossifying cartilage from the humerus of a fetal sheep. Calcified trabeculae…