Anatomy

Subarachnoid Space

The space between the arachnoid membrane and PIA MATER, filled with CEREBROSPINAL FLUID. It contains large blood vessels that supply the BRAIN and SPINAL CORD.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The space between the arachnoid membrane and PIA MATER, filled with CEREBROSPINAL FLUID. It contains large blood vessels that supply the BRAIN and SPINAL CORD.

MeSH Record

Classification

Broader headings

Narrower headings

Related Concepts

Knowledge Graph

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MeSH Record

Synonyms

3 entry terms
  • Space, Subarachnoid
  • Spaces, Subarachnoid
  • Subarachnoid Spaces

MeSH Record

Aspects Covered

22 allowable subheadings

Indexed with the subheadings abnormalities, anatomy & histology, blood supply, chemistry, cytology, diagnostic imaging, drug effects, embryology, enzymology, growth & development, immunology, injuries, metabolism, microbiology, parasitology, pathology, physiology, physiopathology, radiation effects, surgery, ultrastructure, virology.

MeSH Record

Indexing Annotation

NIM when merely locational

MeSH Hierarchy

Tree Number

  1. A08w.186w.566w.166w.686

MeSH Record

NLM Classification

WL 200

AMA Style

References

  1. National Library of Medicine. Subarachnoid Space. Medical Subject Headings (MeSH). 2026. Unique ID D013346. http://id.nlm.nih.gov/mesh/2026/D013346
  2. Subarachnoid Space. In: Wikidata. https://www.wikidata.org/wiki/Q2361541