Is the tubular-dorsal nervous system of chordates associated with radial or lateral symmetry? How does that...

Is the tubular-dorsal nervous system of chordates associated with radial or lateral symmetry? How does that explain the level of nervous system complexity attained by the vertebrate evolutionary branch?

Expert Solution

The tubular dorsal nervous system presents an important phenomenon in vertebrates. It is concerned with the cephalization in these animals and also to bilateral symmetry.

The presence of neural integrating systems with neurons in brain and spinal cord permitted the increase in the complexity of interaction. Afferent conduction(receptor) and motor regulatory and behavioral reactions(efferent) are more sophisticated in chordates. This is due to the presence of more well developed neural networks.

gladiator answered 2 years ago

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