Fig. 1

No macroscopic pathology is observed in the micro pig brain following mild traumatic brain injury. Representative photographs of the gross micro pig brain 6 h following sham or cFPI. The top panel is a dorsal view while the middle panel is a lateral view of the whole pig brain. The lower panel represents 5-mm-thick coronal sections taken at approximately the level of bregma. The boxes indicate the regions of analysis of both axonal injury and microglia activation in the thalamus. Note that the cFPI model employed did not result in contusion or hematoma formation and only minimal subarachnoid hemorrhage was apparent, consistent with mild diffuse injury. Scale bar: 10 mm