a single hollow tract of nervous tissue that constitutes the central nervous system of chordates and develops into the spinal cord and brain in vertebrates.
a solid double strand of nerve fibers along the length of the body in elongate invertebrates, as earthworms and insects, connecting with a pair of nerve ganglia at each body segment.
nerve cord | Define nerve cord at Dictionary.com
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Nerve cord may refer to the following structures: in invertebrates, it refers to the
ventral nerve cord, whereas; in chordates, it stands for the dorsal nerve cord.
Nerve cord definition, a single hollow tract of nervous tissue that constitutes the
central nervous system of chordates and develops into the spinal cord and brain
...first to develop a central nervous system with a brain. The nervous system of a
free-living flatworm such as Planaria consists of a brain, longitudinal nerve cords
Define nerve cord: the pair of closely united ventral longitudinal nerves with their
segmental ganglia that is characteristic of many elongate…
Main Entry: nerve cord. Function: noun 1 : a pair of closely united nerves that run
along the inside of the body on the lower side of many long-bodied ...
Dec 29, 2014 ... Nerve cord is a term that can refer to either (1) the single, hollow, ... In the
vertebrates, the embryonic dorsal nerve cord develops into a spinal ...
An earthworm's ventral nerve cord carries signals from the brain to the body and
allows for the coordination of the ganglia in each segment past the fourth.
Apr 26, 2016 ... The dorsal nerve cord and the notochord are two very different types of tissue.
The dorsal nerve cord develops from ectoderm which becomes ...