| SECTION | Item or Ref ID | Value or text | 
| Identification | 
| TA code | A14.1.06.502 | 
| Entity ID number | THA:5668 | 
| FMA identifier | FMA:78468 | 
| Type of entity | Immaterial entity | 
| Language | 
| TA98 Latin preferred term | apertura aqueductus mesencephali | 
| TA98 Latin official synonym | apertura aqueductus cerebri | 
| TA98 English equivalent | opening of aqueduct of midbrain | 
| TA98 English synonym | opening of cerebral aqueduct | 
| Properties | 
                Immaterial
             | 
            This entity is an immaterial object (no mass). | 
| TA98 Hierarchy | 
| A01.0.00.000 | 
| A14.0.00.000 | 
| A14.1.00.001 | 
| A14.1.03.001 | 
| A14.1.03.005 | 
| A14.1.06.501 | 
| A14.1.06.502 | 
               
                apertura aqueductus mesencephali
               
             | 
          
| FMA Taxonomy | 
| FMA:62955 | 
               
                anatomical entity
               
             | 
          
| FMA:61775 | 
               
                physical anatomical entity
               
             | 
          
| FMA:67112 | 
               
                immaterial physical anatomical entity
               
             | 
          
| FMA:5897 | 
               
                anatomical space
               
             | 
          
| FMA:67552 | 
               
                anatomical cavity
               
             | 
          
| FMA:9337 | 
               
                organ cavity subdivision
               
             | 
          
| FMA:78447 | 
               
                subdivision of cavity of neuraxis
               
             | 
          
| FMA:78468 | 
               
                opening of cerebral aqueduct
               
             | 
          
| Date: 29.01.2013 |