Dissected Sheep Eye Answers - Penn State Biology 1. Cornea: 7. Ciliary Body: 2. Sclera: 8. Choroid: 3. Optic Nerve: 9. Tapetum Lucidum: 4. Iris: 10. Retina: 5. Pupil: 11. Lens: 6. Ora Serrata: 12. Vitreous Humor[PDF] SHEEP EYE DISSECTION PROCEDURES SHEEP EYE DISSECTION PROCEDURES The anatomy of the human eye can be better shown and understood by the actual dissection of an eye. One eye of choice for dissection, that closely resembles the human eye, is that of the sheep. Differences between the two eye types will be mentioned as the dissection is completed.