disaggregated/reaggregated ectoderm treated with activin
involuting marginal zone mesenchymal layer
involuting marginal zone epithelial layer
splanchnic layer of lateral plate mesoderm
dorsal longitudinal anastomosing vessel - left branch
dorsal longitudinal anastomosing vessel - right branch
m. levator mandibulae longus internus primordium
m. levator mandibulae longus profundus primordium
m. levator mandibulae longus superior primordium
m. levator mandibulae articularis primordium
m. levator mandibulae externus primordium
mm. levator arcuum branchialium I primordium
mm. levator arcuum branchialium II primordium
mm. levator arcuum branchialium III primordium
mm. levator arcuum branchialium IV primordium
mm. constrictores branchiales II primordium
mm. constrictores branchiales III primordium
mm. constrictores branchiales IV primordium
processus retroarticularis of Meckel's cartilage
m. levator mandibulae longus superficialis