Anatomy

Morula

An early embryo that is a compact mass of about 16 BLASTOMERES. It resembles a cluster of mulberries with two types of cells, outer cells and inner cells. Morula is the stage before BLASTULA in non-mammalian animals or a BLASTOCYST in mammals.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

An early embryo that is a compact mass of about 16 BLASTOMERES. It resembles a cluster of mulberries with two types of cells, outer cells and inner cells. Morula is the stage before BLASTULA in non-mammalian animals or a BLASTOCYST in mammals.

MeSH Record

Classification

Broader headings

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MeSH Record

Synonyms

1 entry terms
  • Morulas

MeSH Record

Aspects Covered

15 allowable subheadings

Indexed with the subheadings chemistry, classification, cytology, drug effects, enzymology, immunology, metabolism, microbiology, parasitology, pathology, physiology, radiation effects, transplantation, ultrastructure, virology.

MeSH Record

History Note

91(80); was see under CLEAVAGE STAGE, OVUM 1980-90

MeSH Hierarchy

Tree Number

  1. A16.615w

AMA Style

References

  1. National Library of Medicine. Morula. Medical Subject Headings (MeSH). 2026. Unique ID D009028. http://id.nlm.nih.gov/mesh/2026/D009028
  2. Morula. In: Wikipedia. https://en.wikipedia.org/wiki/Morula
  3. Morula. In: Wikidata. https://www.wikidata.org/wiki/Q690632