---
id: kb-2026-00341
title: Human Anatomy
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-01
    statement: Human anatomy studies body structures, while physiology studies how those structures function.
    source_title: Anatomy and Physiology 2e
    source_url: https://openstax.org/details/books/anatomy-and-physiology-2e/
    confidence: medium
  - id: fact-science-02
    statement: Major brain regions include the cerebrum, cerebellum, and brainstem.
    source_title: "Brain Basics: Know Your Brain"
    source_url: https://www.ninds.nih.gov/health-information/patient-caregiver-education/brain-basics-know-your-brain
    confidence: medium
  - id: fact-science-03
    statement: The human skeleton includes axial and appendicular subdivisions.
    source_title: Human skeleton
    source_url: https://www.britannica.com/science/human-skeleton
    confidence: medium
completeness: 0.88
known_gaps:
  - Specialized anatomical variants and clinical edge cases
  - Detailed histology and developmental anatomy
disputed_statements: []
primary_sources:
  - title: Anatomy and Physiology 2e
    type: textbook
    year: 2022
    institution: OpenStax
    url: https://openstax.org/details/books/anatomy-and-physiology-2e/
  - title: "Brain Basics: Know Your Brain"
    type: government_reference
    year: 2024
    institution: National Institute of Neurological Disorders and Stroke
    url: https://www.ninds.nih.gov/health-information/patient-caregiver-education/brain-basics-know-your-brain
  - title: Human skeleton
    type: encyclopedia
    year: 2026
    institution: Encyclopaedia Britannica
    url: https://www.britannica.com/science/human-skeleton
secondary_sources: []
updated: "2026-05-28"
---
## TL;DR
Human anatomy is the study of body structure. It describes organs, tissues, bones, muscles, vessels, nerves, and body systems, and it pairs with physiology, which explains how those structures work.

## Core Explanation
Anatomy can be organized by system: skeletal, muscular, nervous, cardiovascular, respiratory, digestive, endocrine, immune, urinary, and reproductive. It can also be studied by level, from cells and tissues to organs and whole-body regions. The nervous system, for example, includes the brain, spinal cord, and peripheral nerves.

## Detailed Analysis
Good anatomical claims need clear scope. Some statements describe standard adult anatomy, while others vary by age, sex, development, pathology, or individual anatomical variation. Public-facing summaries should avoid unsupported exact counts or performance-like claims unless the source explicitly supports them.

## Further Reading
- OpenStax Anatomy and Physiology 2e
- NINDS Brain Basics
- Britannica Human Skeleton

## Related Articles

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- [3D Human Modeling: Parametric Body Models, Mesh Recovery, and Digital Avatars](../../ai/3d-human-modeling.md)
- [Cognitive Architectures: ACT-R, Soar, and Computational Models of Human-Like Reasoning](../../ai/cognitive-architectures.md)