Fig. 2From: Repeated mild traumatic brain injury causes sex-specific increases in cell proliferation and inflammation in juvenile ratsRepeated mTBI using the ACHI model does not produce significant structural damage. Cresyl violet stain of representative coronal sections following administration of the ACHI procedure (8×) are shown. Photomicrographs display both the dorsal (upper) and ventral (lower) hippocampus for male and female animals at PID1 and PID3. In neither sex were signs of cortical contusion or major tissue damage apparent. Scale bar (upper left): 2 mmBack to article page