| nervous system → IsA → the system | 0.56 | |
| nervous system → IsA → the master system | 0.47 | |
| nervous system → IsA → complex, sophisticated system | 0.45 | |
| nervous system → IsA → the master control system | 0.41 | |
| nervous system → IsA → an organ system | 0.37 | |
| nervous system → IsA → the communication system | 0.34 | |
| nervous system → IsA → recording system of the body | 0.25 |