21. Dendrodendritic synapses have been found and studied in both the olfactory bulb and the retina. 22. The precise positioning of glomeruli within the olfactory bulb probably simplifies the brain's job somewhat. 23. In other species of mammals, particularly rodents, adult-born neurons also appear in the olfactory bulb . 24. PTPrho ( PTPRT ) transcripts have also been observed in the developing cortex and olfactory bulbs . 25. The granule cells of the olfactory bulb communicate exclusively through dendrodendritic synapses because they lack axons. 26. The anterior olfactory nucleus projects, via the anterior commissure, to the contralateral olfactory bulb , inhibiting it. 27. The ewe s learning of her lamb s odor involves synaptic changes within the olfactory bulb . 28. Isolated mouse Olfactory bulb neurons also respond to a range of other " fpr " agonists. 29. Neuromodulatory systems can target the vomeronasal system to mediate sexual behaviors signaled by the accessory olfactory bulb 30. In the central nervous system, OEG are found within the outer two layers of the olfactory bulb .
