The legs are sized so that they do not overlap the commissure tips and therefore afford a better view of the sewing ring adjacent the commissures.
腿状物被设定尺寸，这样它们不会与接合处末端交迭，并因此提供了邻近接合处的缝合环的更好的视野。
2
Hypoplasia or absence of the major telencephalic commissures and a hypoplasia of corticospinal tracts to half the normal size, were the major neurodevelopmental defects we observed.