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ECB-STAGE-32
| Name: mesenchyme blastula phase ECAO ID: 0000330 Definition: "The phase during which skeletogenic primary mesenchyme cells (PMCs) move from the vegetal plate into the blastocoel (ingress) but before the vegetal plate has started to invaginate." |  | 
| Preceded By: gastrula period | Succeeded By: invagination phase | 
Component Stages: early mesenchyme blastula stage, mid-mesenchyme blastula stage, late mesenchyme blastula stage
