Embryonic migration during the prenatal development of palm print patterns.
A major landmark on the palm, the t triradius, is usually found near the wrist. Much interest centres on the fact that it is sometimes found to be central in the palm. It is suggested that, during embryonic development, the t triradius migrates from a position in the centre of the palm to arrive near the wrist. According to this hypothesis, those cases where t triradius remained in the centre of the palm would represent arrests of development. This might explain the association of certain chromosome abnormalities with a t triradius in the centre of the palm.
D002869:Chromosome Aberrations; D025063:Chromosome Disorders; D003878:Dermatoglyphics; D004314:Down Syndrome / Q000235:genetics; D004622:Embryo, Mammalian / Q000502:physiology*; D005260:Female; D006228:Hand Deformities, Congenital; D006801:Humans; D011247:Pregnancy; D012730:Sex Chromosomes