olfactory bulb internal plexiform layer inner plexiform layer of the main olfactory bulb BTO:0001320 EMAPA:35610 neuronames:2713 UBERON:0005379 MA:0000972 main olfactory bulb, inner plexiform layer internal plexiform layer DMBA:15910 BAMS:IPl internal plexiform layer of olfactory bulb DHBA:11330 internal plexiform layer of the olfactory bulb MBA:228 olfactory bulb plexiform layer