the fetus at gestational days 18-19 ( 17-26-mm embryos ) showed a remarkable increase in the number of srif-positive cells and numerous groups of such cells are detectable in various forebrain and diencephalic areas such as the hypothalamic periventricular zone , zona incerta , area lateral to the commissura posterior ( acp ) , area between the optic tract and capsula interna , pars retrolenticularis ( aor ) , n. caudatus putamen , hippocampus , somatic sensory cortex , and n. accumbens , etc .
C0037659
srif
C0020663
hypothalamic