nucleus ambiguus inferior olivary complex lateral reticular nucleus gigantocellular nucleus BAMS:Gi HBA:9602 NLXANAT:1005001 MBA:1048 gigantocellular reticular nuclei uberon Nucleus located in the rostral ventrolateral medulla. The PGL was originally identified by cytoarchitectural criteria in the human medulla (Olszewski and Baxter, 1954). In humans, the PGL is located in the ventrolateral quadrant of the rostral medullary tegmentum between the nucleus subtrigeminalis caudally, trapezoid body and the superior olive rostrally, nucleus gigantocellularis medially, spinothalamic tract fibers laterally, inferior olive ventrally, and the nucleus ambiguous dorsally (Olszewski and Baxter, 1954). In the rat, the PGL has been further subdivided into retrofacial PGL (caudal to the facial nucleus), and more rostrally located juxtafacial PGL (medial to the facial nucleus), based upon different connectivity. nucleus reticularis gigantocellularis HBA:9597 gigantocellular reticular nucleus BAMS:GRN Wikipedia:Gigantocellular_nucleus EMAPA:35378 neuronames:730 MA:0001037 DHBA:12625 UBERON:0002155 gigantocellular group nucleus gigantocellularis FMA:72576 medullary reticular formation vestibular nuclear complex dorsal motor nucleus of vagus nerve hypoglossal nucleus inferior salivatory nucleus parasolitary nucleus brainstem nucleus