| SECTION | Item or Ref ID | Value or text | 
| Identification | 
| TA code | A14.1.05.702 | 
| Entity ID number | THA:5547 | 
| FMA identifier | FMA:78486 | 
| Type of entity | Immaterial entity | 
| Language | 
| TA98 Latin preferred term | fossa rhomboidea | 
| TA98 English equivalent | rhomboid fossa | 
| TA98 English synonym | floor of fourth ventricle | 
| 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 | 
| A14.1.03.002 | 
| A14.1.05.701 | 
| A14.1.05.702 | 
                fossa rhomboidea
               | 
| A14.1.05.703 | |
| A14.1.05.704 | |
| A14.1.05.705 | |
| A14.1.05.706 | |
| A14.1.05.707 | |
| A14.1.05.708 | |
| A14.1.05.709 | |
| A14.1.05.710 | |
| A14.1.05.711 | |
| A14.1.05.712 | 
| 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:78446 | 
                subdivision of fourth ventricle
               | 
| FMA:78476 | 
                surface landmark of fourth ventricle
               | 
| FMA:78486 | 
                rhomboid fossa
               | 
| Date: 29.01.2013 |