Dorsal root ganglion

This image shows a dorsal root ganglion (DRG) explant. The dorsal root ganglion is a swelling on the dorsal roots of spinal nerves, which contains a cluster of cell bodies and synapses. In vertebrates the dorsal root ganglia lie outside the central nervous system. The DRG shown here has been visualised by staining with TRITC-phalloidin to highlight actin (red) and neurofilaments (green).