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|  List navigation | 
| Home page | TAH partonomy | 
| Top level | sensory organs  Short Extended | 
| Level 2 | visual organ (pair)  Short Extended | 
| Level 3 | internal layer of eyeball (pair)  Short Extended | 
| Current level | retinal glial cells (pair) | 
| Subsidiary language with Latin |       | 
| Non Latin primary language |       | 
|  Partonomy list | 
|  Scientific notes | 
|  Signature | 
| Type of list | P4 | 
| List Unit Identifier | 7658 | 
| Number of children | 8 (validated) | 
| Number of units | 3 (validated) | 
| Generic children | 1 | 
| Signature | 54 (validated since 5.2.2018) | 
| Date: 25.06.2025 |