| 100% | LOCKJAW | 7 | Bacterial infection of the nervous system; tetanus | 
| 54% | NEUROLOGY | 9 | Medical study of the nervous system | 
| 51% | NEUROLOGY | 9 | The study of the nervous system | 
| 48% | ENCEPHALON | 10 | Part of the central nervous system | 
| 47% | SPINAL | 6 | __ cord, vital part of the central nervous system | 
| 47% | SCIATIC | 7 | — nerve, that part of the nervous system beginning in the lower back and extending down the thigh | 
| 47% | RETINA | 6 | Only externally visible part of the central nervous system | 
| 44% | NEUROLOGY | 9 | Study of nerves and the nervous system | 
| 42% | STYE | 4 | Infection of the eyelid | 
| 41% | NEUROLOGY | 9 | Branch of medicine dealing with the nervous system | 
| 40% | IMPETIGO | 8 | Contagious infection of the skin | 
| 40% | STYE | 4 | Bacterial infection of an eyelid's oil gland | 
| 40% | QUINSY | 6 | Infection of the throat/tonsils leading to abscess | 
| 40% | NEUROLOGY | 9 | Study focuses on the nervous system | 
| 40% | BRAIN | 5 | Command center for the nervous system | 
| 40% | NEURO | 5 | Prefix relating to the nervous system | 
| 40% | BRAIN | 5 | Organ that controls the nervous system | 
| 40% | ELECTORAL | 9 | Of the voting system | 
| 39% | NEUROLOGY | 9 | Medical science related to the nervous system | 
| 39% | ALCOHOL | 7 | Organic compound that depresses the nervous system | 
| 39% | AFFERENT | 8 | Medically moving towards e.g. the nervous system | 
| 37% | ATHLETESFOOT | 12 | Fungal infection of the skin also known as tinea pedis | 
| 37% | BRAINS | 6 | Organs that are the center of nervous systems | 
| 37% | DUEPROCESS | 10 | Cornerstone of the American legal system | 
| 37% | PERIWIG | 7 | Top of the British judicial system? | 
| 37% | SEGA | 4 | Maker of the Genesis game system | 
| 37% | KATAKANA | 8 | Part of the Japanese writing system | 
| 37% | ENDOCRINE | 9 | System of the glands | 
| 36% | UTERUS | 6 | Muscular organ of the female reproductive system | 
| 36% | ATARI | 5 | Maker of the 2600 video game system |