| A | B |
|---|
| analgesia | Loss or reduction in the ability to sense pain, but without loss of consciousness |
| analgesic | Pain-relieving drug. |
| anesthesia | Loss of feeling. |
| aphasia | Disturbance or loss of the ability to use words or to understand them, usually due to damage to cerebral association areas. |
| apraxia | Impairment in the ability to use objects. |
| ataxia | Partial or complete inability to coordinate voluntary movements. |
| cerebral palsy | Partial paralysis and lack of muscular coordination caused by damage to the cerebrum. |
| coma | Unconscious condition in which a person does not respond to stimulation. |
| cordotomy | Surgical procedure that severs a nerve tract within the spinal cord to relieve intractable pain. |
| craniotomy | Surgical procedure that opens part of the skull. |
| electroencephalogram (EEG) | Recording of the brain’s electrical activity. |
| encephalitis | Inflammation of the brain and meninges, producing drowsiness and apathy. |
| epilepsy | Disorder of the central nervous system that temporarily disturbs brain impulses, producing convulsive seizures and loss of consciousness. |
| hemiplegia | Paralysis of one side of the body and the limbs on that side. |
| Huntington disease | Inherited disorder of the brain causing involuntary, dancelike movements and personality changes. |
| laminectomy | Surgical removal of the posterior arch of a vertebra, usually to relieve the symptoms of a ruptured intervertebral disc pressing on a spinal nerve. |
| monoplegia | Paralysis of a single limb. |
| multiple sclerosis | Loss of myelin and the appearance of scarlike patches throughout the brain or spinal cord or both. |
| neuralgia | Sharp, recurring pain associated with a nerve; usually caused by inflammation or injury. |
| neuritis | Inflammation of a nerve. |
| paraplegia | Paralysis of all four limbs |
| quadriplegia | Paralysis of both lower limbs. |
| vagotomy | Surgical severing of a vagus nerve-for example, to reduce acid secretion in a patient with ulcers nonresponsive to other treatment. |
