Nucleus raphe magnum of a rat. Confocal microscope image showing neurons containing serotonin and norepinephrine. By Hermes Solenzol.
Neurons in the central amygdala of a mouse marked by expression of the fluorescence protein mCherry. These neurons express the neuropeptide corticotropin-releasing factor (CRF). The body of one of the neurons is overexposed, but the synaptic spines on the dendrites are visible. Confocal microscopy image taken by Hermes Solenzol.
Dorsal horn of a rat spinal cord showing neurons with the mu-opioid receptor (green) and axons that contain enkephalins, a type of endorphin (red). Confocal microscope image by Hermes Solenzol.