United States or Brazil ? Vote for the TOP Country of the Week !
In no case, however, are either the frontal or the temporal sulci the earliest. As a rule the occipito- parietal is the earlier of the two. At the latter part of this period, another sulcus, the "posterio- parietal," or "Fissure of Rolando" is developed, and it is followed, in the course of the sixth month, by the other principal sulci of the frontal, parietal, temporal and occipital lobes.
Word Of The Day