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. 2011 Feb 21;589(Pt 8):2079–2091. doi: 10.1113/jphysiol.2010.203737

Figure 1. Projections from the caudal CnF to the dorsal and lateral PAG.

Figure 1

Camera lucida drawings of anterograde labelling of ascending axons and terminal boutons from an injection of PHA-L in the caudal cuneiform nucleus. Series of transverse sections from posterior to anterior (A–F) are shown (×4 and ×10 magnification on the left and right side, respectively). Numbers indicate distance (in mm) from bregma. Abbreviations: 4V: 4th ventricle; Aq: aqueduct; CnF: cuneiform nucleus; dPAG: dorsal column of the periaqueductal grey area; dlPAG: dorsolateral column of the periaqueductal grey area; CIC: central nucleus of the inferior colliculus; DR: dorsal raphé; EIC: external cortex of the inferior colliculus; IC: inferior colliculus; lPAG: lateral column of the periaqueductal grey area; PrCnF: precuneiform nucleus; vlPAG: ventrolateral column of the periaqueductal grey area.