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 notochord. It is formed from a part of the ectoderm that rolls, forming the hollow tube, compared to other animal phyla, which have solid, ventral tubes. The dorsal nerve cord is later modified into the brain and spinal cord. Dorsal nerve cord is mainly found in phylum Vertebrata.
Dorsal means the "back" side, as opposed to the belly side (ventral).
A dorsal, hollow nerve cord.
Yes, chordate's nerve cord is hollow as opposed to animals that are non chordate with a nerve cord which are solid.
Dorsal hollow nerve cord in some invertebrates (like chordates) or vertebrates.
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 notochord. It is formed from a part of the ectoderm that rolls, forming the hollow tube, compared to other animal phyla, which have solid, ventral tubes. The dorsal nerve cord is later modified into the brain and spinal cord. Dorsal nerve cord is mainly found in phylum Vertebrata. Dorsal means the "back" side, as opposed to the belly side (ventral).
A dorsol hollow nerve cord is a major phylum in the Kingdom Animalia. A chordate is characterized by the presence of a dorsal notochord at some stage of development.
it protects a hollow nerve chord
Notochord, Postanal Tail, Pharyngeal Slits, Dorsal hollow nerve cord
a hollow nerve cord, a notochord, pharyngeal pouches, and a postanal tail
Features are a hollow nerve cord in the dorsalside of the body; ... Larger sharks have been said to exist, but at the moment have not been documented
Organisms that have pharyngeal gill slits and a dorsal hollow nerve cord at some point in their development include chordates, such as fish, amphibians, reptiles, birds, and mammals. These features are key characteristics of chordates during their embryonic stages.
All chordates will have (in some stage of their life) adorsal, hollow nerve corda flexible, rodlike, internal supporting structure called a notochordpaired gill slits in the throat region
The position of the worms nerve cord compare with your nerve cord is it placement along the ventral surface of the body. Our spinal cord is protected by vertebra were the worms is unprotected.