title: [Embryogenesis of the human tongue].
abstract: Developmental peculiarities of the tongue as a whole and its main structural elements (muscles, membranes, glands, lingual tonsil) have been studied in 120 human embryos and fetuses 5-week-old--9-month-old. Transmissive electron microscopy, electron histochemistry (for estimation of 5'-nucleotidase activity), staining of semithin slices with toluidine blue and aniline++ pink have been applied. Problems on migration of myogenic elements in the developing tongue have been discussed. Ultrastructure of gustatory bulbs of the human fetus tongues has been investigated. A complete formation of the tongue takes place by the 8th-9th months of the prenatal development.
authors.forename: O N
authors.initials: ON
authors.lastname: Alekseev
mesh_terms: D005314:Embryonic and Fetal Development / Q000502:physiology*; D005865:Gestational Age; D006801:Humans; D008854:Microscopy, Electron; D014066:Palatine Tonsil / Q000196:embryology* / Q000254:growth & development; D013194:Staining and Labeling / Q000379:methods; D013650:Taste Buds / Q000196:embryology* / Q000254:growth & development / Q000648:ultrastructure; D014059:Tongue / Q000196:embryology* / Q000254:growth & development / Q000294:innervation / Q000648:ultrastructure
vernacular_title: Embriogenez iazyka cheloveka.