http://en.wikipedia.org/wiki/Dorsal_nerve_cord
Dorsal means the "back" side, as opposed to Ventral which is the "front" side of an organism. In organisms with Bipedalism dorsal is the back and ventral is the front. In organisms which walk on four limbs the dorsal surface is the top (back) and the ventral surface is the bottom (belly).
Dorsal means the "back" side, as opposed to Ventral which is the "front" side of an organism. In organisms with Bipedalism dorsal is the back and ventral is the front. In organisms which walk on four limbs the dorsal surface is the top (back) and the ventral surface is the bottom (belly).
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