Phenomena and Processes

Placentation

The development of the PLACENTA, a highly vascularized mammalian fetal-maternal organ and major site of transport of oxygen, nutrients, and fetal waste products between mother and FETUS. The process begins at FERTILIZATION, through the development of CYTOTROPHOBLASTS and SYNCYTIOTROPHOBLASTS, the formation of CHORIONIC VILLI, to the progressive increase in BLOOD VESSELS to support the growing fetus.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The development of the PLACENTA, a highly vascularized mammalian fetal-maternal organ and major site of transport of oxygen, nutrients, and fetal waste products between mother and FETUS. The process begins at FERTILIZATION, through the development of CYTOTROPHOBLASTS and SYNCYTIOTROPHOBLASTS, the formation of CHORIONIC VILLI, to the progressive increase in BLOOD VESSELS to support the growing fetus.

MeSH Record

Classification

Broader headings

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MeSH Record

Synonyms

5 entry terms
  • Placental Development
  • Hemochorial Placental Development
  • Hemochorial Placentation
  • Placental Development, Hemochorial
  • Placentation, Hemochorial

MeSH Record

Aspects Covered

5 allowable subheadings

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

MeSH Record

Indexing Annotation

check the tags FEMALE & PREGNANCY

MeSH Record

History Note

76(75); was see under PLACENTA 1975

MeSH Record

Previous Indexing

  • Placenta (1966-1974)

MeSH Hierarchy

Tree Number

MeSH Record

NLM Classification

QS 645

AMA Style

References

  1. National Library of Medicine. Placentation. Medical Subject Headings (MeSH). 2026. Unique ID D010929. http://id.nlm.nih.gov/mesh/2026/D010929
  2. Placentation. In: Wikipedia. https://en.wikipedia.org/wiki/Placentation
  3. Placentation. In: Wikidata. https://www.wikidata.org/wiki/Q1114520