Anatomy

Oocytes

Female germ cells derived from OOGONIA and termed OOCYTES when they enter MEIOSIS. The primary oocytes begin meiosis but are arrested at the diplotene state until OVULATION at PUBERTY to give rise to haploid secondary oocytes or ova (OVUM).

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Female germ cells derived from OOGONIA and termed OOCYTES when they enter MEIOSIS. The primary oocytes begin meiosis but are arrested at the diplotene state until OVULATION at PUBERTY to give rise to haploid secondary oocytes or ova (OVUM).

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Synonyms

3 entry terms
  • Ovocytes
  • Oocyte
  • Ovocyte

MeSH Record

Aspects Covered

16 allowable subheadings

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

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Indexing Annotation

do not confuse with OOCYSTS life cycle stage in protozoa

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History Note

84(75); was see under OVUM 1975-83

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Previous Indexing

  • Ovum (1966-1974)

MeSH Hierarchy

Tree Numbers

  1. A05w.360w.490w.690w.680w
  2. A11w.497w.497w.600w

MeSH Record

NLM Classification

WP 100

AMA Style

References

  1. National Library of Medicine. Oocytes. Medical Subject Headings (MeSH). 2026. Unique ID D009865. http://id.nlm.nih.gov/mesh/2026/D009865
  2. Oocytes. In: Wikipedia. https://en.wikipedia.org/wiki/Oocyte
  3. Oocytes. In: Wikidata. https://www.wikidata.org/wiki/Q3246226