Navigation System of Brain Cells Decoded (IMAGE) Karlsruher Institut für Technologie (KIT) Caption Embryonal brain development in the petri dish: During growth, axons (green) of retina neurons read biochemical signals by means of a growth cone (magenta) equipped with molecular antennas at their ends and guide them to their targets to correctly interconnect the visual system of the brain. Credit Photo: KIT, Weth Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.