| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | optic nerve | western culture | In Western culture, the optic nerve is a crucial part of the visual system and heavily researched in the medical field. | 3 |
| 2 | optic nerve | North America | The optic nerve is a critical part of the visual system and is extensively studied in North American medical and biological sciences. | 1 |