Femur histological sections of Psittacosaurus sp. (JLU DERC-Z0007) (IMAGE)
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(a–d) Section photograph of I to IV, respectively, with black arrows pointing medially. (e) Close-up of osteocytic lacunae, with the blue arrow indicating stellate osteocytic lacunae, the pink arrow indicating the spindle-shape osteocytic lacunae, and the black arrow indicating the canaliculi. (f) Close-up of the junction of medullary cavity and cortical bone, showing partial cortex inside the medullary cavity. (g) Close-up highlighting the longitudinal and reticular orientation of vascular canals. (h) Close-up of the radial orientation of vascular canals. CB, cortical bone; LC, longitudinal vascular canals; MC, medullary cavity; RC, reticular vascular canals.
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