| No. | Item | Definition |
|---|---|---|
| 1. | action potential | electrical nerve impulse |
| 2. | agnosia | inability to recognize |
| 3. | amygdala | emotion-processing brain structure |
| 4. | aphasia | language impairment |
| 5. | apraxia | impaired skilled movement |
| 6. | ataxia | loss of coordination |
| 7. | attention | focused mental concentration |
| 8. | axon | long nerve fiber |
| 9. | Babinski sign | abnormal sole reflex |
| 10. | balance | postural stability |
| 11. | basal ganglia | movement-control brain nuclei |
| 12. | bradykinesia | slowness of movement |
| 13. | brainstem | base of the brain |
| 14. | cerebellum | brain region for coordination |
| 15. | cerebrospinal fluid | fluid around brain and cord |
| 16. | cognition | thinking and understanding |
| 17. | coma | deep unresponsive state |
| 18. | concussion | mild traumatic brain injury |
| 19. | consciousness | state of awareness |
| 20. | coordination | smooth movement control |
| 21. | cortex | outer brain layer |
| 22. | delirium | acute confused state |
| 23. | dementia | progressive cognitive decline |
| 24. | demyelination | loss of myelin |
| 25. | dendrite | branch receiving signals |
| 26. | diplopia | double vision |
| 27. | dysarthria | slurred speech disorder |
| 28. | dyskinesia | abnormal involuntary movement |
| 29. | edema | swelling from fluid |
| 30. | electroencephalogram | brain wave recording |
| 31. | electromyography | muscle electrical test |
| 32. | encephalitis | brain inflammation |
| 33. | epilepsy | disorder causing recurrent seizures |
| 34. | executive function | planning and self-control skills |
| 35. | fasciculation | small involuntary muscle twitch |
| 36. | frontal lobe | planning and behavior region |
| 37. | fundus | inside back of eye |
| 38. | gait | manner of walking |
| 39. | gray matter | neuron-rich tissue |
| 40. | headache | pain in the head |
| 41. | hemianopia | loss of half vision |
| 42. | hemiparesis | weakness on one side |
| 43. | hemorrhage | bleeding |
| 44. | hippocampus | memory-related brain structure |
| 45. | Huntington’s disease | inherited movement disorder |
| 46. | hydrocephalus | excess brain fluid |
| 47. | hypothalamus | brain homeostasis center |
| 48. | infarct | tissue death from ischemia |
| 49. | intracranial pressure | pressure inside the skull |
| 50. | ischemia | reduced blood supply |
| 51. | language | system of communication |
| 52. | lateralization | specialization by brain side |
| 53. | lesion | area of abnormal tissue |
| 54. | localization | finding lesion location |
| 55. | lumbar puncture | spinal fluid sampling |
| 56. | memory | ability to retain information |
| 57. | meninges | brain and spinal coverings |
| 58. | meningitis | inflammation of meninges |
| 59. | migraine | recurring severe headache disorder |
| 60. | multiple sclerosis | immune demyelinating disease |
| 61. | myasthenia | muscle weakness disorder |
| 62. | myelin | insulating nerve covering |
| 63. | myopathy | muscle disease |
| 64. | nerve conduction study | test of nerve signals |
| 65. | neurodegeneration | progressive nerve cell loss |
| 66. | neuromuscular junction | nerve-muscle connection |
| 67. | neuron | nerve cell |
| 68. | neuropathy | nerve damage disorder |
| 69. | neurotransmitter | chemical nerve messenger |
| 70. | numbness | loss of feeling |
| 71. | nystagmus | involuntary eye movements |
| 72. | occipital lobe | vision-processing brain region |
| 73. | orientation | awareness of person and place |
| 74. | paraplegia | paralysis of both legs |
| 75. | parietal lobe | touch and spatial region |
| 76. | Parkinson’s disease | movement disorder with rigidity |
| 77. | peripheral nerve | nerve outside brain and cord |
| 78. | proprioception | sense of body position |
| 79. | pupil | eye opening |
| 80. | quadriplegia | paralysis of all limbs |
| 81. | radiculopathy | pinched nerve root disorder |
| 82. | rigidity | stiff resistance to movement |
| 83. | seizure | sudden abnormal brain activity |
| 84. | spasticity | increased muscle stiffness |
| 85. | speech | spoken language output |
| 86. | spinal cord | main nerve pathway |
| 87. | strength | muscle power |
| 88. | stroke | sudden brain blood-flow loss |
| 89. | synapse | junction between nerve cells |
| 90. | syncope | temporary loss of consciousness |
| 91. | temporal lobe | hearing and memory region |
| 92. | thalamus | sensory relay center |
| 93. | TIA | brief stroke-like episode |
| 94. | tingling | pins-and-needles sensation |
| 95. | tone | baseline muscle tension |
| 96. | tremor | rhythmic shaking movement |
| 97. | vertigo | false spinning sensation |
| 98. | visual field | total area seen |
| 99. | weakness | reduced muscle power |
| 100. | white matter | myelinated nerve tissue |