Ch. 8 Diagnostic Terms Flashcards
astereognosis
inability to judge the form of an object by touch
agnosia
loss of neurologic function involving interpretation of sensory information
atopognosis
inability to locate a sensation properly
Alzheimer disease
disease of structural changes to the brain resulting in deterioration that progresses from forgetfulness to loss of all intellectual functions, total disability and death
amyotrophic lateral sclerosis (ALS)
progressive deterioration of motor nerve cells resulting in total loss of voluntary muscle control; aka Lou Gehrig disease
cerebral palsy (CP)
condition of motor dysfunction caused by damage to the cerebrum during development or injury at birth
cerebrovascular disease
disorder resulting from a change within one or more blood vessels of the brain
cerebral arteriosclerosis
hardening of the arteries in the brain
cerebral atherosclerosis
condition of lipid buildup in the arteries of the brain
cerebral aneurysm
dilation of a blood vessel in the brain (aneurysm = dilation or widening)
cerebral thrombosis
blood clot in a blood vessel of the brain
cerebral embolism
obstruction of a blood vessel in the brain transported through the circulation
cerebrovascular accident (CVA); stroke
damage to the brain caused by cerebrovascular disease, such as occlusion of a blood vessel by a thrombus or embolus (ischemic stroke) or intracranial hemorrhage after rupture of an aneurysm (hemorrhagic stroke)
transient ischemic attack (TIA)
brief episode of loss of blood flow to the brain; often precedes a stroke
encephalitis
inflammation of the brain
epilepsy
disorder of the CNS characterized by recurrent seizures
tonic-clonic seizure
stiffening-jerking; a major motor seizure involving all muscle groups (grand mal (big bad) seizure)
absence seizure
seizure involving a brief loss of consciousness without motor involvment; aka petit mal (little bad) seizure
partial seizure
seizure involving only limited areas of the brain with localized symptoms
glioma
tumor of the glial cells
herniated disc
protrusion of a degenerated or fragmented intervertebral disc so that the nucleus pulposus protrudes, causing compression of the nerve root
herpes zoster
shingles
Huntington chorea; Huntington disease
hereditary disease of the CNS characterized by bizzare, involuntary body movement and progressive dementia (choros = dance)
hydrocephalus
abnormal accumulation of CSF in the ventricles of the brain
meningioma
benign tumor of the meninges
meningitis
inflammation of the meninges
migraine headache
sudden periodic attacks of mostly unilateral headache, often accompanied by disordered vision, nausea, or vomiting, lasting for hours or days; caused by dilation of arteries in the brain
multiple sclerosis (MS)
disease of the CNS characterized by demyelination of nerve fibers with episodes of neurologic dysfunction (exacerbation) followed by recovery (remission)
myasthenia gravis
autoimmune disorder affecting the neuromuscular junction causing a progressive decrease in muscle strength; activity and strength resumes after a period of rest
myelitis
inflammation of the spinal cord
narcolepsy
sleep disorder characterized by a sudden, uncontrollable need to sleep
neural tube defects
congenital deformities of the brain and spinal cord caused by incomplete development of the neural tube
anencephaly
defect in the closure of the cephalic portion of the neural tube, resulting in incomplete development of the brain and bones of the skull
spina bifida
defect in the development of the spinal column characterized by the absence of vertebral arches, often resulting in pouching of the meninges and/or spinal cord; most common neural tube defect (spina = spine; bifida = split in two parts)
Parkinson disease
condition of slowly progressive degeneration of the substantia nigra resulting in decreased dopamine production; characterized by tremors; rigidity of muscles and slow movement; usually occurs later in life
plegia
paralysis
hemiplegia
paralysis of one side of the body
paraplegia
paralysis from the waist down
quadriplegia
paralysis of all four limbs
poliomyelitis
inflammation of the gray matter of the spinal cord caused by a virus, often resulting in spinal and muscle deformity and paralysis (polio = gray)
polyneuritis
inflammation involving two or more nerves
sleep apnea
periods of breathing cessation that occur during sleep, often causing snoring