Organisms

Hydra

A genus of freshwater polyps in the family Hydridae, order Hydroida, class HYDROZOA. They are of special interest because of their complex organization and because their adult organization corresponds roughly to the gastrula of higher animals.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A genus of freshwater polyps in the family Hydridae, order Hydroida, class HYDROZOA. They are of special interest because of their complex organization and because their adult organization corresponds roughly to the gastrula of higher animals.

MeSH Record

Classification

Broader headings

Related Concepts

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MeSH Record

Synonyms

1 entry terms
  • Hydras

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

History Note

72

MeSH Record

Previous Indexing

  • Coelenterata (1966-1971)

MeSH Hierarchy

Tree Number

  1. B01w.050w.500w.308w.485w.400w

AMA Style

References

  1. National Library of Medicine. Hydra. Medical Subject Headings (MeSH). 2026. Unique ID D006829. http://id.nlm.nih.gov/mesh/2026/D006829
  2. Hydra. In: Wikipedia. https://en.wikipedia.org/wiki/Hydra_(genus)
  3. Hydra. In: Wikidata. https://www.wikidata.org/wiki/Q192290