involuted dorsal mesoderm,involuted ventral mesoderm,myotome of trunk somite 7,sclerotome of trunk somite 5,myotome of trunk somite 10,trunk somite 12,presumptive axial mesoderm,myotome of head somite 3,posterior ventral blood island,head somite 2,notochordal epithelium,sclerotome of trunk somite 11,elastica externa,trunk somite 9,sclerotome of trunk somite 7,sclerotome of trunk somite 9,sclerotome of tail somite 14,sclerotome of tail somite 17,trunk somite 4,sclerotome of trunk somite 12,sclerotome of trunk somite 3,gastrocoel roof plate,myotome of trunk somite 1,trunk somite 1,myotome of trunk somite 3,tail somite 17,tail somite 16,myeloid cell,anterior ventral blood island,sacral vertebra,sclerotome of trunk somite 10,myotome of trunk somite 9,blood,trunk somite 11,presomitic mesoderm,flexural organ,myotome of trunk somite 4,notochord,sclerotome of trunk somite 4,myotome of trunk somite 6,proctodeum,myotome of tail somite 17,sclerotome of tail somite 18,myotome of head somite 4,tail somite 15,axial mesoderm,thrombocyte,dermatome,myotome of trunk somite 5,head somite 3,presumptive paraxial mesoderm,myotome of tail somite 18,cervical vertebra,myotome of trunk somite 13,somite,sclerotome of trunk somite 1,sclerotome of trunk somite 8,myotome of trunk somite 11,paraxial mesoderm,myotome of head somite 1,head somite 4,head somite 1,trunk somite 13,ventral mesoderm,sclerotome of trunk somite 13,trunk somite 7,ventral blood island,tail somite 14,axial skeleton,tail somite 18,migrating macrophage,dermis,sclerotome of trunk somite 6,myotome of trunk somite 12,trunk somite 10,trunk somite 2,myotome of trunk somite 2,trunk somite 3,trunk somite 6,trunk somite 8,cloacal sphincter,myotome of trunk somite 8,sclerotome of head somite 4,sclerotome of tail somite 15,myotome of tail somite 15,trunk somite 5,erythroid lineage cell,myotome of tail somite 14,myotome of head somite 2,sclerotome of tail somite 16,urostyle,vitelline vein,myotome of tail somite 16,sclerotome of trunk somite 2,sclerotomal cartilage,syndetome,monociliated cell,anterior ventral blood island,presomitic mesoderm,vertebral column,sclerotome,migrating macrophage,vertebra,mandibular mesenchyme,stratum spongiosum,cranial skeleton,macrophage,hematopoietic stem cell,ventrolateral edge of myotome,postcranial axial skeleton,anterior notochord,stratum compactum,posterior ventral blood island,flexural organ,rib,transverse process,myotome,rostral presomitic mesoderm,Eberth-Kastschenko layer,axial ossicle,prechordal plate,left-right organizer,vertebral centrum,myocoelic slit,dermomyotome,dorsomedial edge of myotome,archenteron roof midline,perichordal tissue,erythrocyte,left-right organizer primordium,caudal presomitic mesoderm,vacuolated notochordal tissue,neutrophil,dermatome,notochordal sheath,urostyle,posterior notochord,ventral blood island border,thrombocyte,sclerotomal mesenchyme,dorsal endoderm,vertebral element,abdominal myoblast