Step 1 | Step 2 | Step 3 | Step 4 | Step 5 | Step 6 | thumbnails

Figure 4. With your finger, follow the edge of the fornix, from the temporal lobe below, to its position suspended from the corpus callosum above. The two prominent bumps, revealed in the depths of the space created, are part of the roof of the midbrain (superior colliculi).