---
id: kb-2026-00370
title: Human Brain Structure
schema_type: TechArticle
category: science
language: en
confidence: medium
last_verified: '2026-05-28'
created_date: '2026-05-22'
generation_method: ai_assisted
ai_models:
  - claude-opus
derived_from_human_seed: true
conflict_of_interest: none_declared
is_live_document: false
data_period: static
atomic_facts:
  - id: fact-science-001
    statement: NINDS identifies the cerebrum, cerebellum, and brainstem as major parts of the brain.
    source_title: 'Brain Basics: Know Your Brain'
    source_url: >-
      https://www.ninds.nih.gov/health-information/public-education/brain-basics/brain-basics-know-your-brain
    confidence: medium
  - id: fact-science-002
    statement: OpenStax describes the cerebral cortex as the outer gray matter of the cerebrum.
    source_title: The Central Nervous System
    source_url: https://openstax.org/books/anatomy-and-physiology-2e/pages/13-2-the-central-nervous-system
    confidence: medium
  - id: fact-science-003
    statement: >-
      Britannica describes the cerebellum as contributing to coordination and regulation of motor
      activity.
    source_title: Cerebellum
    source_url: https://www.britannica.com/science/cerebellum
    confidence: medium
completeness: 0.88
known_gaps:
  - >-
    Coverage intentionally narrowed to directly sourced public evidence; adjacent subtopics are not
    exhaustively covered.
disputed_statements: []
primary_sources:
  - title: 'Brain Basics: Know Your Brain'
    type: government_document
    year: 2026
    url: >-
      https://www.ninds.nih.gov/health-information/public-education/brain-basics/brain-basics-know-your-brain
    institution: National Institute of Neurological Disorders and Stroke
  - title: The Central Nervous System
    type: textbook
    year: 2022
    url: https://openstax.org/books/anatomy-and-physiology-2e/pages/13-2-the-central-nervous-system
    institution: OpenStax
  - title: Cerebellum
    type: reference
    year: 2026
    url: https://www.britannica.com/science/cerebellum
    institution: Encyclopaedia Britannica
secondary_sources: []
updated: '2026-05-28'
---
## TL;DR

The human brain can be described through major regions such as the cerebrum, cerebellum, and brainstem. This repair removes unsupported superlatives and unrelated AI-governance dispute text.

## Core Explanation

The article now uses conservative anatomy references: NINDS for the major brain parts, OpenStax for cerebral cortex organization, and Britannica for cerebellum function. It avoids speculative claims about consciousness or exact synapse counts.

## Further Reading

- [Brain Basics: Know Your Brain](https://www.ninds.nih.gov/health-information/public-education/brain-basics/brain-basics-know-your-brain)
- [The Central Nervous System](https://openstax.org/books/anatomy-and-physiology-2e/pages/13-2-the-central-nervous-system)
- [Cerebellum](https://www.britannica.com/science/cerebellum)

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