Anatomy

Synaptonemal Complex

The three-part structure of ribbon-like proteinaceous material that serves to align and join the paired homologous CHROMOSOMES. It is formed during the ZYGOTENE STAGE of the first meiotic division. It is a prerequisite for CROSSING OVER.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The three-part structure of ribbon-like proteinaceous material that serves to align and join the paired homologous CHROMOSOMES. It is formed during the ZYGOTENE STAGE of the first meiotic division. It is a prerequisite for CROSSING OVER.

MeSH Record

Classification

Broader headings

Related Concepts

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MeSH Record

Synonyms

3 entry terms
  • Synaptinemal Complex
  • Complex, Synaptinemal
  • Complex, Synaptonemal

MeSH Record

Aspects Covered

15 allowable subheadings

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

MeSH Record

History Note

91(86); was see under MEIOSIS 1986-90

MeSH Record

Previous Indexing

  • Cell Division (1966-1967)
  • Meiosis (1968-1985)

MeSH Hierarchy

Tree Numbers

  1. A11w.284w.430w.106w.279.345.190w.160.830w
  2. G04.144w.220w.220.687w.883w.250.500w
  3. G04.144w.220w.220.781w.906w.250.500w
  4. G05.113w.220.687w.883w.250.500w
  5. G05.113w.220.781w.906w.250.500w
  6. G05.360w.160.830w

AMA Style

References

  1. National Library of Medicine. Synaptonemal Complex. Medical Subject Headings (MeSH). 2026. Unique ID D013573. http://id.nlm.nih.gov/mesh/2026/D013573
  2. Synaptonemal Complex. In: Wikipedia. https://en.wikipedia.org/wiki/Synaptonemal_complex
  3. Synaptonemal Complex. In: Wikidata. https://www.wikidata.org/wiki/Q2064069