Transverse Sections of the Frog Neural Tube Stage Embryo

Transverse Section through Brain

Transverse Section through Pharynx

Transverse Section through Nephrotome and Liver Diverticulum

Transverse Section with Germ Layers Coloured

Blue = ectoderm, Pink = mesoderm

Yellow = endoderm, Green = notochord

Regions of Mesoderm

Glossary

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Dr. Steven Scadding ( scadding@uoguelph.ca ) or Sandra Frombach (sfrombac@uoguelph.ca),

Department of Zoology, University of Guelph, Guelph, Ontario, Canada N1G 2W1.