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Anatomy Ontology

pectoral fin fold

Term ID
ZFA:0005317
Synonyms
  • pectoral fin membrane
Definition
The functional webs of the paired fins. They arise as a consequence of apical fold (AER) expansion and of migration of the distal mesenchyme. The fin folds are delimited by a dorsal and a ventral striated epidermis. The cells of the epidermal basal stratum are positioned on a basement membrane. Directly beneath the basement membrane of each side there is an array of actinotrichs, fibers of the extracellular matrix which act as supportive elements of the larval fin folds. (1)
Appears at
Hatching:Pec-fin (60.0h-72.0h)
Evident until
Adult (90d-730d, breeding adult)
References
  • TAO:0005317
Ontology
Anatomy Ontology
Relationships
develops from
is part of
is a type of
Expression
Genes with most Figures
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Phenotype
Phenotype caused by Genes
Citations