[End of embryonic somite period in the rat and a comparison with the corresponding embryonic period in humans].

The end of the embryonic somite period--stage 12 according of the Carnegie Institution--was identified in the rat. The series was composed of 23 embryos taken out from uterus on day 11/4H, day 11/5H and day 11/10H post fertilization. The specimens were submitted to external macroscopic examinations and to histological sections. The rat development of this… CONTINUE READING