English: Endochondral ossification of the distal epiphysis of rat femur; (a) On postnatal day (PND) 9, the secondary ossification center can be seen with blood vessel and connective tissue cell invasion and chondrocyte activation close to the ossification center. Surrounding chondrocytes are still in the resting phase; (b) on PND 22, the epiphysis is mostly ossified, and chondrocytes are present in the epiphyseal growth plate; (c) on PND 42, ossified epiphysis with EGP present. EGP epiphyseal growth plate, pz zone of proliferation, hz zone of hypertrophy and calcification, HE, scale bar 1000 µm.
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Endochondral ossification of the distal epiphysis of rat femur.
Uploaded a work by Jana Brankovič, Janja Jan, Gregor Fazarinc, and Milka Vrecl from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7642367/ with UploadWizard