scale primordium

Term ID

ZFA:0001704

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