Anatomy

Decidua

The hormone-responsive glandular layer of ENDOMETRIUM that sloughs off at each menstrual flow (decidua menstrualis) or at the termination of pregnancy. During pregnancy, the thickest part of the decidua forms the maternal portion of the PLACENTA, thus named decidua placentalis. The thin portion of the decidua covering the rest of the embryo is the decidua capsularis.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The hormone-responsive glandular layer of ENDOMETRIUM that sloughs off at each menstrual flow (decidua menstrualis) or at the termination of pregnancy. During pregnancy, the thickest part of the decidua forms the maternal portion of the PLACENTA, thus named decidua placentalis. The thin portion of the decidua covering the rest of the embryo is the decidua capsularis.

MeSH Record

Classification

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MeSH Record

Synonyms

2 entry terms
  • Deciduum
  • Deciduas

MeSH Record

Aspects Covered

24 allowable subheadings

Indexed with the subheadings abnormalities, anatomy & histology, blood supply, 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 Hierarchy

Tree Numbers

  1. A05w.360w.319w.679w.490w.373w
  2. A16.710w.289w

AMA Style

References

  1. National Library of Medicine. Decidua. Medical Subject Headings (MeSH). 2026. Unique ID D003656. http://id.nlm.nih.gov/mesh/2026/D003656
  2. Decidua. In: Wikipedia. https://en.wikipedia.org/wiki/Decidua
  3. Decidua. In: Wikidata. https://www.wikidata.org/wiki/Q2531387