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ZIRC
OBO ID: ZFA:0001704
Term Name: scale primordium Search Ontology:
Synonyms:
  • scale placode
  • scale primordia
Definition: A portion of tissue that gives rise to the scale. At the initial stages the primordium is composed of an accumulation of fibroblast below the basil epidermis. As the primordium develops the epidermis over the fibroblast alters: the basal epidermal cells become cuboidal and narrow, the collagen matrix remodels and the hemidesmosomes disappear. (1)
Appears at: Larval:Days 21-29 (21d-30d, 7.8mm, 10 teeth)
Evident until: Juvenile:Days 45-89 (45d-90d, 14 mm, 12 teeth)
References:
  • TAO:0002242
Ontology: Anatomy Ontology
expand   EXPRESSION
expand   PHENOTYPE