(a) Corpus-radix view of the tongue (9-13 weeks). Triple stain. Scale bars: 500µm. (b) Radix view of the tongue (9-13 weeks). Triple stain. Scale bars: 500µm. Plc) papilla linguales caudales, Mb) mucous glands, Dk) tongue muscle, Khk) hyaline cartilage, Pc) papilla conicae, K) hyaline cartilage.