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- The evolution of nervous systems refers to the origin and development of nervous systems in animals (or metazoans)1. Nervous systems evolved from specialized electrical signaling cells called neurons, which adapted the mechanism of action potentials present in some single-celled and colonial eukaryotes1. One early theory on the evolutionary origin of the nervous system proposed a three-stage process involving the development of non-nervous effectors, receptors, and protoneurons2.
Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.Evolution of nervous systems. The evolution of nervous systems dates back to the first development of nervous systems in animals (or metazoans). Neurons developed as specialized electrical signaling cells in multicellular animals, adapting the mechanism of action potentials present in motile single-celled and colonial eukaryotes.en.wikipedia.org/wiki/evolution_of_nervous_systemsEarly theories on the evolutionary origin of the nervous system argued for a three-stage process: first, the development of non-nervous “independent effectors,” such as muscle cells; second, the appearance of non-nervous receptors responding to certain modalities in a receptor-effector mechanism; and finally, the formation of a “protoneuron,” from which primitive nerves and ganglia evolved.www.britannica.com/science/nervous-system/Evolu… - People also ask2 more answersmicrosoftstart.msn.com
WebTwo basic aspects of the evolution of the nervous system must be considered: first, how primitive systems serve newer functions, and, second, how the formation of new systems …
WebJul 7, 2017 · SUMMARY. The nervous system—in particular, the brain and its cognitive abilities—is among humans’ most distinctive and impressive attributes. How the nervous …
- Author: André M.M. Sousa, Kyle A. Meyer, Gabriel Santpere, Forrest O. Gulden, Nenad Sestan
- DOI: 10.1016/j.cell.2017.06.036
- Publish Year: 2017
- Published: 2017/07/07
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WebEvolving understanding of nervous system evolution. Main Text. Nervous systems encompass a staggering diversity from nerve nets of just a few hundred neurons — …
WebExplore the theories, development, and diversity of nervous systems across metazoan and vertebrate evolution. Learn about the cellular, molecular, and functional aspects of …
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WebJul 23, 2019 · This chapter reviews the evidence and arguments for multiple origins of nervous systems in animal evolution. It also discusses the implications of …
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