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The dorsal nerve cord is one of the embryonic features unique to chordates, along with a notochord, a post-anal tail and pharyngeal slits. It is a hollow cord dorsal to the no â¦ tochord.ike humans, A dorsal nerve cord would be present on the back of the person or chordate. Some invertebrates such as arthropods, have a ventral nerve cord on the belly..
The ventral nerve cord makes up the nervous system of some phyla of the invertebrates, particularly within the nematodes, annelids and the arthropods.It usually consists of cerebral ganglia anteriorly with the nerve cords running down the ventral (belly, as opposed to back) plane of the organism.he ventral nerve cord makes up the nervous system of some phyla of the invertebrates, particularly within the nematodes, annelids and the arthropods.