Human inner hearing organoid with sensory hair cells (cyan), sensory neurons (yellow), and cell nuclei and synapses (magenta) INDIANA SCHOOL OF MEDICINE

(See K. R. Koehler et ing., “ Generation of inner ear organoids containing useful hair cells from human pluripotent stem cells, ”   Nature Biotechnology,   doi: ten. 1038/nbt. 3840, 2017. )