part of olfactory bulb development tangential migration from the subventricular zone to the olfactory bulb rostral migratory stream migration GO:0022028 biological_process The migration of cells in the telencephalon from the subventricular zone to the olfactory bulb in which cells move orthogonally to the direction of radial migration and do not use radial glial cell processes as substrates for migration. telencephalon cell migration