Anterior surface
- Basilar sulcus
- Median groove separating two eminences converging to the middle cerebellar peduncles
- The basilar artery runs within it
- Trigeminal nerve
- Emergence below the upper third of the pons
- Superior root: small diameter, motor
- Inferior root: large diameter, sensitive
Lateral surfaces
- Conventional boundaries between the anterior and posterior surfaces: go through the trigeminal nerve
