Organisms

Sea Urchins

Somewhat flattened, globular echinoderms, having thin, brittle shells of calcareous plates. They are useful models for studying FERTILIZATION and EMBRYO DEVELOPMENT.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Somewhat flattened, globular echinoderms, having thin, brittle shells of calcareous plates. They are useful models for studying FERTILIZATION and EMBRYO DEVELOPMENT.

MeSH Record

Classification

Broader headings

Narrower headings

Related Concepts

Knowledge Graph

Loading graph…

Drag nodes to rearrange; hover to trace links; click a node to open its page.

MeSH Record

Synonyms

13 entry terms
  • Echinoidea
  • Echinoideas
  • Sea Urchin
  • Urchin, Sea
  • Urchins, Sea
  • Clypeasteroida
  • Sand Dollars
  • Sand-Dollar
  • Clypeasteroidas
  • Dollar, Sand
  • Dollars, Sand
  • Sand Dollar
  • Sand-Dollars

MeSH Record

Aspects Covered

18 allowable subheadings

Indexed with the subheadings anatomy & histology, chemistry, classification, cytology, drug effects, embryology, enzymology, genetics, growth & development, immunology, metabolism, microbiology, parasitology, pathogenicity, physiology, radiation effects, ultrastructure, virology.

MeSH Record

Indexing Annotation

general; prefer specifics; sea urchin eggs = OVUM (IM) + SEA URCHINS (NIM) if merely test organism

MeSH Record

History Note

72

MeSH Record

Previous Indexing

  • Echinodermata (1966-1971)

MeSH Hierarchy

Tree Number

  1. B01w.050w.500w.408w.578w

AMA Style

References

  1. National Library of Medicine. Sea Urchins. Medical Subject Headings (MeSH). 2026. Unique ID D012617. http://id.nlm.nih.gov/mesh/2026/D012617
  2. Sea Urchins. In: Wikipedia. https://en.wikipedia.org/wiki/Sea_urchin
  3. Sea Urchins. In: Wikidata. https://www.wikidata.org/wiki/Q83483