Locations of -homocysteic acid injection sites in ventrolateral (VL) and dorsolateral/lateral (DL/L) periaqueductal grey (PAG)

<p><b>Copyright information:</b></p><p>Taken from "Laminar organization of spinal dorsal horn neurones activated by C- vs. A-heat nociceptors and their descending control from the periaqueductal grey in the rat"</p><p></p><p>The European Journal of Neuroscience 2007;26(4):943-952.</p><p>Published online Jan 2007</p><p>PMCID:PMC2121136.</p><p>© The Authors (2007). Journal Compilation © Federation of European Neuroscience Societies and Blackwell Publishing Ltd</p> (A) Representative transverse sections to illustrate all injection sites in the VL- and DL/L-PAG. Locations of injections in control (group C) and experimental (group B) animals are shown in black and shades of grey, respectively. (B) Photomicrographs of individual examples of injection sites in VL- and DL/L-PAG. Insets are examples of evoked changes in blood pressure (mmHg). Aq, Aqueduct