| Term | Definition |
|
encephalopathy |
disease of the brain |
|
cerebellum |
part of the brain that controls muscular coordination and balance |
|
epidural hematoma |
collection of blood above the dura mater |
|
leptomeningitis |
inflammation of the pia and arachnoid membranes |
|
anencephaly |
condition of absence of a brain |
|
poliomyelitis |
inflammation of the gray matter of the spinal cord |
|
meningeal |
pertaining to the membranes around the brain and spinal cord |
|
radiculopathy |
disease of nerve roots (of spinal nerves) |
|
myelomeningocele |
hernia of the spinal cord and meninges |
|
vagal |
pertaining to the tenth cranial nerve |
|
cerebral cortex |
outer region of the cerebrum (contains gray matter) |
|
intrathecal |
pertaining to within a sheath through the meninges and into the subarachnoid space |
|
polyneuritis |
inflammation of many nerves |
|
thalamic |
pertaining to the thalamus |
|
myelogram |
x-ray study of the spine (after contrast is injected via lumbar puncture) |
|
meningioma |
tumor of the meninges |
|
glioma |
tumor of neuroglial cells (a brain tumor) |
|
subdural hematoma |
mass of blood below the dura mater (outermost meningeal membrane) |
|
dyslexia |
reading disorder |
|
ataxia |
condition of no coordination |
|
bradykinesia |
condition of slow movement |
|
hyperesthesia |
condition of increased sensation |
|
narcolepsy |
seizure of sleep; uncontrollable compulsion to sleep |
|
aphasia |
inability to speak |
|
motor apraxia |
inability to perform a task |
|
hemiparesis |
slight paralysis in the right or left half of the body |
|
causalgia |
burning pain |
|
paraplegia |
paralysis in the lower part of the body |
|
syncope |
fainting |
|
neurasthenia |
nervous exhaustion (lack of strength) and fatigue |
|
multiple sclerosis |
destruction of myelin sheath (demyelination) and its replacement by hard plaques |
|
epilepsy |
sudden, transient disturbances of brain function cause seizures |
|
amyotrophic lateral sclerosis |
atrophy of muscles and paralysis caused by damage to motoor neurons in the spinal cord and brainstem |
|
huntington disease |
patient displays bizarre, abrupt, involuntary, dance-like movements, as well as decline in mental functions |
|
hydrocephalus |
cerebrospinal fluid accumulates in the head (in the ventricles of the brain) |
|
myasthenia gravis |
loss of muscle strength due to the inability of a neurotransmitter (acetylcholine) to transmit impulses from nerve cells to muscle cells |
|
parkinson disease |
degeneration of nerves in the basal ganglia occur in later life, leading to tremors, shuffling gait, and muscle stiffness; dopamine (neurotransmitter) is deficient in the brain |
|
alzheimer disease |
deterioration of mental capacity (dementia); autops shows cerebral cortex atrophy, widening of cerebral sulci, and microscopic neurofibrillary tangles |
|
bell palsy |
unilateral facial paralysis |
|
astrocytoma |
tumor of neuroglial brain cells (astrocytes) |
|
pyogenic meningitis |
inflammation of the meninges (bacterial infection with pus formation) |
|
tourette syndrome |
involuntary spasmodic, twitching movements (tics), uncontrollable vocal sounds, and inappropriate words |
|
cerebral contusion |
bruising of brain tissue as a result of direct trauma to the head |
|
cerebrovascular accident |
disruption of the normal blood supply to the brain; stroke or cerebral infarction |
|
cerebral concussion |
temporary brain dysfunction; loss of consciousness that usually clears within 24 hours |
|
herpes zoster |
neurologic condition caused by infection with herpes zoster virus; blisters form along the course of peripheral nerves |
|
cerebral embolus |
blockage of a blood vessel in the cerebrum caused by material from another part of the body that suddenly occludes the vessel |
|
cerebral thrombosis |
blockage of a blood vessel in the cerebrum caused by the formation of a clot within a vessel |
|
cerebral hemorrhage |
bursting forth of blood from a cerebral artery (can cause a stroke) |
|
cerebral aneurysm |
widening of a blood vessel (artery)in the cerebrum; the aneurysm can burst and lead to a CVA |
|
HIV encephalopathy |
brain disease (dementia and encephalitis) caused by infection with AIDS virus |
|
hypothalamus |
part of brain that controls sleep, appetite, temperature, and secretions of the pituitary gland |
|
syncopal |
pertaining to fainting |
|
paresthesias |
abnormal tingling sensations |
|
paresis |
slight paralysis in the right or left half of the body |
|
radiculitis |
inflammation of a spinal nerve root |
|
aphasia |
inability to speak |
|
apraxia |
movements and behavior that are not purposeful |
|
ataxia |
lack of muscular coordination |
|
dyslexia |
reading, writing, and learning disorders |
|
hyperkinesis |
excessive movement |
|
hemiplegia |
paralysis in one half (right or left) of the body |
|
paraplegia |
paralysis in the lower half of body |
|
quadriplegia |
paralysis in all four limbs |
|
neurasthenia |
nervous exhaustion and fatigue |