Final answer:
The optic nerve passes through the optic canal, which is an opening located at the anterior lateral corner of the sella turcica, within the middle cranial fossa.
Step-by-step explanation:
The passway for the optic nerve is through the optic canal. This canal allows for the passage of the optic nerve from the retina to the brain and is located at the anterior lateral corner of the sella turcica. It is one of several openings in the middle cranial fossa, which is a deeper section of the cranial cavity situated behind the anterior fossa and has a butterfly shape owing to the large petrous ridges. The optic nerve, after passing through the optic canal, reaches the brain where the visual information is processed.