cleft cell

Term ID

ZFA:0005786

Synonyms

Definition

Wedge-shaped epidermal cell positioned along the apex of the developing fin fold. Each cleft cell retains a wedge-shaped form during fold formation and develops a basal cleft-shaped invagination. Invaginations are aligned in neighboring cleft cells so that these cells cap the distal boundary of the subepidermal space where collagenous extracellular fibres called actinotrichia run anteroposteriorly along the length of the fin fold. (1)

Appears at

Segmentation:26+ somites (22.0h-24.0h)

Evident until

Larval:Day 5 (120.0h-144.0h, 3.9mm, 6 teeth)

References

Ontology

Anatomy Ontology