title: The growth rate of the human cranial base between nasion and inion.
abstract: The growth rate of the human cranial base between nasion (N) - tuberculum sellae (Ts) and tuberculum sellae - internal occipital protuberance (= Twining's line (Tw)) were calculated in proportion to nasion - inion (N - I) distance and expressed in two cranial base ratios: (see formulas) The growth rate of the whole cranial base showed a notable stability and a given ratio apparently prevails through into later life.
mesh_terms: D000293:Adolescent; D000328:Adult; D002508:Cephalometry / Q000379:methods; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008433:Mathematics; D008875:Middle Aged; D012886:Skull / Q000254:growth & development*