Skip to content
planarian
EntityQ6502673· pop 19· linked from 413 articles

thumb|Unidentified planarian

Research

2,431 papers

via PubMed

Wikidata facts

Image
Planariafull.jpg
Show 1 more fact
Commons category
Planariidae
Sources (2)

via Wikidata · CC0

~16 min read

Article

14 sections
Contents
  • Phylogeny and taxonomy
  • Phylogeny
  • Taxonomy
  • Anatomy and physiology
  • Nervous system
  • Reproduction
  • Neoblasts
  • As a model system in biological and biomedical research
  • Regeneration
  • Biochemical memory experiments
  • Planarian species used for research and education
  • See also
  • References
  • External links

thumb|Unidentified planarian

A Planarian ( triclads; or planaria) is a free-living flatworm of the class Turbellaria, order Tricladida, which includes hundreds of species, found in freshwater, marine, and terrestrial habitats. Planarians are characterized by a three-branched intestine, including a single anterior and two posterior branches. Their body is populated by adult stem cells called neoblasts, which planarians use for regenerating missing body parts. Many species are able to regenerate any missing organ, which has made planarians a popular model in research of regeneration and stem cell biology. The genome sequences of several species are available, as are tools for molecular biology analysis.

Gallery (14)

Connections

Categories