| The hippocampus, fornix, and mamillary bodies have an integral role in memory and learning. |
| Its apex, where the two choroid plexuses blend with each other, lies just behind the anterior pillars of the fornix. |
| These commissures are the anterior commissure, the fornix, and the corpus callosum, the two latter being peculiar to Mammalia. |
| The levator palpebrae superioris is the highest, and passes forward to the superior tarsal plate and fornix of the conjunctiva. |
| Between the two crura of the fornix is a white, triangular lamina, known as the fornical commissure. |
| Each peduncle joins, along with the taenia semicircularis, the anterior pillar of the fornix of its own side. |
