part of
part of
immediate transformation of
nervous system
central nervous system
(...) at some stage of its development, every chordate exhibits five uniquely derived characters or synapomorphies of the group: (...) (4) a single, tubular nerve cord that is located dorsal to the notochord (...) (reference 1); The neural tube is destined to differentiate into the brain and spinal cord (the central nervous system) (reference 2); Taken together, our data make a very strong case that the complex molecular mediolateral architecture of the developing trunk CNS (central nervous system), as shared between Platynereis and vertebrates, was already present in their last common ancestor, Urbilateria. The concept of bilaterian nervous system centralization implies that neuron types concentrate on one side of the trunk, as is the case in vertebrates and many invertebrates including Platynereis, where they segregate and become spatially organized (as opposed to a diffuse nerve net). Our data reveal that a large part of the spatial organization of the annelid and vertebrate CNS was already present in their last common ancestor, which implies that Urbilateria had already possessed a CNS (reference 3).[well established][VHOG]
AAO:0000090
BAMS:CNS
BILA:0000080
BTO:0000227
CALOHA:TS-0150
CNS
EFO:0000908
EHDAA2:0000225
EHDAA:828
EMAPA:16470
EMAPA:16754
EV:0100163
FBbt:00005094
FMA:55675
GAID:570
MA:0000167
MAT:0000457
MESH:D002490
OpenCyc:Mx4rvzYt3pwpEbGdrcN5Y29ycA
Part of the nervous system which includes the brain and spinal cord.[AAO]
TAO:0000012
The brain and spinal cord. Kimmel et al, 1995.[TAO]
The central nervous system (CNS) is the part of the nervous system which includes the brain, spinal cord, and nerve cell layer of the retina (CUMBO).
The central nervous system is the core nervous system that serves an integrating and coordinating function. In vertebrates it consists of the neural tube derivatives: the brain and spinal cord. In invertebrates it includes central ganglia plus nerve cord.
UBERON:0001017
UMLS:C0927232
VHOG:0000293
XAO:0000215
ZFA:0000012
cerebrospinal axis
neuraxis
systema nervosum centrale
uberon
ectoderm-derived structure
organ system subdivision
future central nervous system