Skip Navigation Bar

MeSH Database Example: Text Version


Example of MeSH Database recordExplanation of record components
Ventilation-Perfusion Ratio: The ratio of alveolar ventilation to simultaneous alveolar capillary blood flow in any part of the lung. (Stedman, 25th ed) MeSH heading and definition: The definition describes how the term is used for indexing.
Year introduced: 1970(1968) Year introduced: The term is searchable back to the earliest date shown.

Subheadings: This list includes those paired at least once with this heading in MEDLINE and may not reflect current rules for allowable combinations.

drug effects - immunology - instrumentation - methods - physiology - radiation effects - veterinary

Subheadings: Lists subheadings that have been used with this heading. Select subheadings for searching using the checkboxes.
Restrict Search to Major Topic headings only.
Do Not Explode this term (i.e., do not include MeSH terms found below this term in the MeSH tree).
Major Topic and Do Not Explode searching options: Use checkboxes to select.

Entry Terms:

  • Ratio, Ventilation-Perfusion
  • Ratios, Ventilation-Perfusion
  • Ventilation Perfusion Ratio
  • Ventilation-Perfusion Ratios
Entry terms: "Synonyms" for the heading. A search of any of these terms in PubMed will automatically retrieve citations for articles indexed with the MeSH heading.
Previous Indexing: Respiratory Function Tests (1966-1967) Previous Indexing: Helpful for searching this concept prior to use of current heading.
All MeSH Categories
Analytical, Diagnostic and Therapeutic Techniques and Equipment Category
Diagnostic Techniques and Procedures
Diagnostic Techniques, Respiratory System
Respiratory Function Tests
Pulmonary Gas Exchange
Ventilation-Perfusion Ratio
All MeSH Categories
Phenomena and Processes Category
Circulatory and Respiratory Physiology
Respiratory Physiology
Respiratory Physiologic Phenomena
Ventilation-Perfusion Ratio
MeSH hierarchy: The position of the term in the hierarchy. Many terms are positioned in more than one branch.