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ECB-STAGE-35

Name: late mesenchyme blastula stage

ECAO ID: 0000360

Definition: "The skeletogenic primary mesenchyme cells (PMCs) have migrated away from the vegetal plate by extending filopodia and moving along the blastocoel wall. The vegetal plate has flattened but has not started to invaginate. The apical pole domain still bears an apical tuft of long, non-motile cilia."


Preceded By: mid-mesenchyme blastula stage Succeeded By: blastopore formation stage