Early human hand morphology: an estimation of fetal age.
Fetal hand morphogenesis was studied between 6 and 14 weeks of gestation by scanning electron microscopy. Detailed observations of surface features allowed three individualized phases of hand development to be distinguished, related to the shape (6 to 10 weeks), to the appearance of creases (10 to 13 weeks) and of ridges (13 weeks onwards).
D003878:Dermatoglyphics; D005333:Fetus / Q000033:anatomy & histology*; D005865:Gestational Age; D006225:Hand / Q000196:embryology* / Q000648:ultrastructure; D006801:Humans