Analytical, Diagnostic and Therapeutic Techniques, and Equipment

Functional Residual Capacity

The volume of air remaining in the LUNGS at the end of a normal, quiet expiration. It is the sum of the RESIDUAL VOLUME and the EXPIRATORY RESERVE VOLUME. Common abbreviation is FRC.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The volume of air remaining in the LUNGS at the end of a normal, quiet expiration. It is the sum of the RESIDUAL VOLUME and the EXPIRATORY RESERVE VOLUME. Common abbreviation is FRC.

MeSH Record

Classification

Broader headings

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MeSH Record

Synonyms

5 entry terms
  • Capacities, Functional Residual
  • Capacity, Functional Residual
  • Functional Residual Capacities
  • Residual Capacities, Functional
  • Residual Capacity, Functional

MeSH Record

Aspects Covered

6 allowable subheadings

Indexed with the subheadings drug effects, ethics, genetics, immunology, physiology, radiation effects.

MeSH Record

Indexing Annotation

usually NIM

MeSH Record

History Note

91(75); was see under LUNG VOLUME MEASUREMENTS 1975-90

MeSH Hierarchy

Tree Numbers

  1. E01w.370.386.700w.485w.750w.275w
  2. G09.772.850w.390w

AMA Style

References

  1. National Library of Medicine. Functional Residual Capacity. Medical Subject Headings (MeSH). 2026. Unique ID D005652. http://id.nlm.nih.gov/mesh/2026/D005652
  2. Functional Residual Capacity. In: Wikipedia. https://en.wikipedia.org/wiki/Functional_residual_capacity
  3. Functional Residual Capacity. In: Wikidata. https://www.wikidata.org/wiki/Q1073808