- Lacrimal nerve
- Frontal nerve
- Cranial nerve IV
- Ophthalmic artery
Correct Answer: Ophthalmic artery
The lacrimal, frontal and trochlear nerves, as well as the ophthalmic vein, pass through the superior orbital fissure outside of the annulus of Zinn. The superior and inferior divisions of cranial nerve III, cranial nerve VI, and the nasociliary nerve pass through the fissure within the Annulus of Zinn. The ophthalmic artery enters the orbit through the optic canal, adjacent to the optic nerve.