Anatomy

Atrial Septum

The thin membrane-like muscular structure separating the right and the left upper chambers (HEART ATRIA) of a heart.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The thin membrane-like muscular structure separating the right and the left upper chambers (HEART ATRIA) of a heart.

MeSH Record

Classification

Broader headings

Related Concepts

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MeSH Record

Synonyms

1 entry terms
  • Septum, Atrial

MeSH Record

Aspects Covered

22 allowable subheadings

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

MeSH Record

History Note

2008

MeSH Record

Previous Indexing

  • Heart Septum (1964-2007)

MeSH Hierarchy

Tree Number

  1. A07w.541w.459.249w

AMA Style

References

  1. National Library of Medicine. Atrial Septum. Medical Subject Headings (MeSH). 2026. Unique ID D054087. http://id.nlm.nih.gov/mesh/2026/D054087
  2. Atrial Septum. In: Wikipedia. https://en.wikipedia.org/wiki/Interatrial_septum
  3. Atrial Septum. In: Wikidata. https://www.wikidata.org/wiki/Q2529769