nervous system
Let an agent explain the nervous system and its divisions, relay structure and function from neuroscience references, describe comparative and model organism nervous systems, and route personal neurological questions to clinicians.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent explain the nervous system and its divisions, relay structure and function from neuroscience references, describe comparative and model organism nervous systems, and route personal neurological questions to clinicians.
The organ system that coordinates actions and sensations by transmitting signals between parts of the body, comprising in vertebrates the central nervous system of brain and spinal cord and the peripheral nervous system of nerves and ganglia, functionally divided into the somatic system controlling voluntary movement and sensation and the autonomic system regulating internal organs, with sensory, motor and integrative functions; nervous systems range from nerve nets in cnidarians to the complex mammalian and human nervous systems studied in neuroscience.
What it is for: Coordinating sensation, movement and internal regulation.
It can be explain divisions and function; relay structure; describe comparative systems; route personal questions.
Distinguishing features
Electrical and chemical signalling
Central and peripheral divisions
Somatic and autonomic functions
Plasticity
What it looks like
The brain, spinal cord and branching nerves.
Physical character
human neurons: about 86 billion
spinal nerve pairs: 31 count - human
cranial nerve pairs: 12 count - human
How it is recognised
Signalling organ system
Central and peripheral; somatic and autonomic; sensory and motor; human, mammalian, mouse and vertebrate systems
The endocrine system signals chemically; the brain is one part; nerves are components
Related models
is a kind of - in registry terms
is a kind of - in registry terms
includes - as its central organ
is built from - and glial cells
In practice
Families and kinds
central nervous system: brain and spinal cord
peripheral nervous system: nerves and ganglia
somatic nervous system
autonomic nervous system: sympathetic, parasympathetic and enteric
sensory nervous system
nervous systems of vertebrates, mammals and model organisms such as the mouse
invertebrate nervous systems from nerve nets to ganglia
Identifiers
TA2 systema nervosum Terminologia Anatomica
MeSH D009420 nervous system
Standards and regulation
Terminologia Anatomica nomenclature
Clinical guidelines in neurology
Animal research regulations for model organisms
Failure modes and hazards
Agents giving personal medical advice
Oversimplifying divisions
Confusing nervous and endocrine signalling
Also called
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Understand What the nervous system is.
Science.
Divisions
Divisions.
Divisions
Divisions.
- What are the central, peripheral, somatic, autonomic and sensory divisions, and how do they relate? definition
- Is the question about the nervous system as a whole, a division, the brain or a specific nerve? boundary
Cells
Cells and signalling.
Cells
Cells.
- How do neurons and glia transmit signals through action potentials and synapses? definition
- Which entry fits neuron? action
Function Functions.
Science.
Functions
Sensory, motor and integrative.
Functions
Functions.
- How does the nervous system sense, integrate and act, including reflexes and voluntary control? provenance
- Which references are standard? provenance
Autonomic
Autonomic regulation.
Autonomic
Autonomic.
- How do the sympathetic, parasympathetic and enteric systems regulate organs? provenance
- Which entry fits autonomic nervous system? action
Clinical Health.
Clinical.
Urgent
Emergencies.
Urgent
Urgent.
- Which signs, such as sudden weakness, speech difficulty, severe headache or seizures, need emergency care? action
- Is the user describing such signs, which need emergency services now? boundary
Conditions
Conditions.
Conditions
Conditions.
- What conditions affect the nervous system, in general terms? provenance
- Is the user asking about their own symptoms, which need a clinician? boundary
Context Comparative and research.
Context.
Comparative
Evolution and comparison.
Comparative
Comparative.
- How do nervous systems differ across animals, from nerve nets to vertebrate brains? provenance
- Which sources are cited? provenance
Research
Research and models.
Research
Research.
- How are mouse and other model nervous systems used in neuroscience research? provenance
- Which entry fits model organism? action
What the second pass must settle
- Should central and autonomic nervous systems be separate primary entries?
- How should neuroscience references be linked?
- The registry entry has merged aliases naming species-specific and functional subsystems; should they be split off?