Axonal projections from the D5 whisker representation of the rat primary somatosensory cortex (case R606)

Bright-field microscopy images of serial coronal brain sections showing anterogradely labeled axons in an adult male Sprague Dawley rat following injection of Phaseolus vulgaris leucoagglutinin in the D5 whisker representation of the primary somatosensory cortex. The labeling was visualized histologically in sections counterstained to visualize cytoarchitecture. The presence of cytochrome oxidase positive barrels has been visualized in selected sections through the sensorimotor cortex.