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| Home page | TNA partonomy | 
| Top level | 
                systema nervosum  
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| Current level | 
                systema ventriculare    Extended
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| Subsidiary language with Latin | English French Spanish Russian | 
| Non Latin primary language | English French Spanish Russian | 
               
              Partonomy list
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              Scientific notes
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              Signature
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| Type of list | P2 | 
| List Unit Identifier | 8276 | 
| Sublist 1 | 5546 ventriculus quartus 55/26 on 14.4.2018 | 
| Sublist 2 | 5788 ventriculus tertius 24/23 on 29.4.2018 | 
| Sublist 3 | 6108 ventriculus lateralis 38/15 on 28.4.2018 | 
| Subtotals | subchildren 117 subunits 64 | 
| Proper children | 8 | 
| Number of children | 125 (validated) | 
| Proper units | 4 | 
| Number of units | 68 (validated) | 
| Signature | 4955 (validated since 30.10.2019) | 
| Date: 31.12.2021 |