EmbryoNRDevFIG1 Embryonic development of the nervous system

EmbryoNRDevFIG 1: Routes of Entry to the Nerve Ring (shown in postembryonic head).

Most neuron processes enter the NR from the ventral side either directly or indirectly. However a subset of the head neurons have entry to the NR from three other routes. Note the neurons that are anterior to the nerve ring and have posterior processes that enter the NR are not indicated in this picture.


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