(IMAGE) Kyushu University Caption Like a bonsai, neurons called mitral cells also grow multiple branches. In the beginning, mitral cells branch into many glomeruli, but as development progresses, a single branch is strengthened and the others are pruned away. Kyushu University researchers studying mouse olfactory neurons found that BMPR-2 is one of the key regulators of selective stabilization of neuron branching and that strengthening of that input only happens in the presence of neuron signaling. Credit Kyushu University, bonsai provided by @h.h.rockkraft on Instagram Usage Restrictions Only for media and non-commercial use. Credit accordingly. 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.