| Axons of neurons in the hippocampus run in a tract called the fornix, which ends on neurons in the mammillary bodies of the hypothalamus. |
| The hippocampus, fornix, and mamillary bodies have an integral role in memory and learning. |
| Between the two crura of the fornix is a white, triangular lamina, known as the fornical commissure. |
| Its apex, where the two choroid plexuses blend with each other, lies just behind the anterior pillars of the fornix. |
| The column of the fornix has been divided a short distance above the anterior commissure. |
| The fornix, mamillary bodies, and part of the anterior commissure can also be seen. |
