3. See the picture below, which numbers show the followings: optic never,optic chiasm, and olfactory bulbVIIIVIIXIIIIIIItrVIрIVIX XXI

3 See the picture below which numbers show the followings optic neveroptic chiasm and olfactory bulbVIIIVIIXIIIIIIItrVIрIVIX XXI class=