Back حبل عصبي بطني Arabic Strickleiternervensystem German Cordón nervioso ventral Spanish زنجیر عصبی شکمی Persian Tikapuuhermosto Finnish 배쪽신경다발 Korean Det ventrale nervesystemet NB Брюшная нервная цепь Russian 腹神經索 Chinese

Ventral nerve cord

The anatomy of an insect, with the brain (#5) in teal green and ventral nerve cord (#19) in darkblue.
Left, a schematic of the Drosophila central nervous system, including the brain and ventral nerve cord. Right, a cross section of the ventral nerve cord, illustrating sensory input and motor output. Adapted with permission from.[1]

The ventral nerve cord is a major structure of the invertebrate central nervous system. It is the functional equivalent of the vertebrate spinal cord.[2] The ventral nerve cord coordinates neural signaling from the brain to the body and vice versa, integrating sensory input and locomotor output.[1] Because arthropods have an open circulatory system, decapitated insects can still walk, groom, and mate — illustrating that the circuitry of the ventral nerve cord is sufficient to perform complex motor programs without brain input.[3]

  1. ^ a b Tuthill JC, Wilson RI (October 2016). "Mechanosensation and Adaptive Motor Control in Insects". Current Biology. 26 (20): R1022–R1038. Bibcode:2016CBio...26R1022T. doi:10.1016/j.cub.2016.06.070. PMC 5120761. PMID 27780045.
  2. ^ Hickman C, Roberts L, Keen S, Larson A, Eisenhour D (2007). Animal Diversity (4th ed.). New York: McGraw Hill. ISBN 978-0-07-252844-2.
  3. ^ Venkatasubramanian L, Mann RS (June 2019). "The development and assembly of the Drosophila adult ventral nerve cord". Current Opinion in Neurobiology. 56: 135–143. doi:10.1016/j.conb.2019.01.013. PMC 6551290. PMID 30826502.

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