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. 2016 Jan 12;6:417. doi: 10.3389/fphys.2015.00417

Figure 10.

Figure 10

Postnatal morphological changes in the mouse intersphenoidal synchondroses. Representative sagittal sections through the ISS at P21 (A), P28 (B), P76 (C) stained using hematoxylin, eosin (20x magnification). The hypertrophic (Hz) zone appears narrower by P28, and by P76 few hypertrophic cells can be distinguished. Mineralized tissue from the ectocranial surface of the caudal and rostral margins can be seen extending toward each other from P21 to P28 (filled arrowheads) and have bridged the ISS by P76.