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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..
There are four key characteristics to chordates. They are the  presence of a notochord, the presence of a hollow nerve cord that  is dorsal to the notochord, pharyngeal pouc â¦ hes and an endostyle.t some point in their lives, a chordate will have a notochord, a nerve cord that runs down their back, and a slit in the throat area. The phylum name Chordata came from the n â¦ otochord, a flexible rod that supports the back. They include fishes, amphibians, and reptiles.