MeSH Headings & Trees
An Introduction to MeSH
MeSH (Medical Subject Headings) is the controlled vocabulary of terms organized hierarchically into 16 trees. Each tree is assigned a letter as an identifier. MeSH can be viewed online at http://www.nlm.nih.gov/mesh/MBrowser.html.
| A | Anatomy |
| B | Organisms |
| C | Diseases |
| D | Chemicals and Drugs |
| E | Analytical, Diagnostic and Therapeutic Techniques and Equipment |
| F | Psychiatry and Psychology |
| G | Phenomena and Processes |
| H | Disciplines and Occupations |
| I | Anthropology, Education, Sociology and Social Phenomena |
| J | Technology, Industry, and Agriculture |
| K | Humanities |
| L | Information Science |
| M | Named Groups |
| N | Health Care |
| V | Publication Characteristics |
| Z | Geographicals |
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Last Reviewed: January 18, 2017