Though neurons come in different shapes and sizes, the basic blueprint consists of a cell body, from which protrudes spindly appendages called dendrites and axons. Dendrites are branchlike structures that receive signals from other nerve cells and deliver them to the cell body. "We found that in more than half of the cells, the axon does not emerge from the cell body, but arises from a lower dendrite," study researcher Christian Thome, a neuroscientist at Heidelberg University and the Bernstein Center Heidelberg-Mannheim, said in a statement. Specifically, they are found in the hippocampus, a deep-brain structure involved in memory and navigation.
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