When the nervous system is developing neurons send their axons, the parts of neurons that make up the body’s nerves, to make connections with other neurons. For instance, a neuron in the dorsal spinal cord grows towards attractive signals coming from the ventral spinal cord and cross the midline. The front ends of growing axons have ‘growth cones’ that sniff out attractive and repulsive signals. If … Continue reading Researchers identify protein complex that helps direct growth of axons.