Chapter 12 Nervous System Flashcards
(41 cards)
Neurologists/Neurology
Physicians who specialize in the diagnosis, treatment, and prevention of neurologic disorders; the specialty
neur/o = nerve
-logy = study of
Amnesia
Loss of memory caused by brain damage or severe emotional trauma
Aphasia
Lack or impairment of the ability to form or understand speech
Less severe forms include dysphasia and dysarthria; dysarthria refers to difficulty in the articulation (pronunciation) of speech
a- = without
phas/o = speech
-ia = condition
Athetosis
Continuous, involuntary, slow, writhing movement of the extremities
Aura
Premonition; sensation of light or warmth that may precede an epileptic seizure or the onset of some types of headache
Dysphasia
condition of difficulty with swallowing
dys- = difficult
phag/o = eat
-ia = condition
Dyssomnia
Disorders of the sleep-wake cycles. Insomnia is the inability to sleep or stay asleep
Hypersomnia is excessive depth or length of sleep, which may be accompanied by daytime sleepiness
dys- = difficult
somn/o = sleep
-ia = condition
Fasciculation
Involuntary contraction of small, local muscles
Gait, abnormal
Disorder in the manner of walking
Ex. ataxia, a lack of muscular coordination, as in cerebral palsy (CP)
Hypokinesia
Decrease in normal movement; may be due to paralysis
hypo- = deficient
kinesi/o = movement
-ia = condition
Neuralgia
Nerve pain
If described as a “burning pain,” it is called causalgia
neur/o = nerve
-algia = pain
Paresthesia
Feeling of prickling, burning, or numbness
para- = abnormal
esthesi/o = feeling
-ia = condition
Seizure
Neuromuscular reaction to abnormal electrical activity within the brain
Causes include fever or epilepsy, a recurring seizure disorder; also called convulsions
Spasm
Involuntary muscle contraction of sudden onset.
Ex. hiccoughs, tics, and stuttering
Syncope
Fainting. A vasovagal attack is a form of syncope that results from abrupt emotional stress involving the vagus nerve’s effect on blood vessels
Tremors
Rhythmic, quivering, purposeless skeletal muscle movements seen in some elderly individuals and in patients with various neurodegenerative disorders
Vertigo
Dizziness; abnormal sensation of movement when there is none—either of oneself moving, or of objects moving around oneself
Acalculia
Inability to perform mathematical calculations
a- = no, not, without
calcul/o = stone
-ia = condition
Ageusia
Absence of the ability to taste
Parageusia is an abnormal sense of taste or a bad taste in the mouth
a- = no, not, without
geus/o = taste
-ia = condition
Agnosia
Inability to recognize objects visually, auditorily, or with other senses
a- = no, not, without
gnos/o = knowledge
-ia = condition
Agraphia
inability to write
a- = no, not, without
graph/o = record
-ia = condition
Anosmia
lack of sense of smell
an- = no, not, without
osm/o = sense of smell
-ia = condition
Apraxia
Inability to perform purposeful movements or to use objects appropriately
a- = no, not, without
prax/o = purposeful movement
-ia = condition
Dyslexia
Inability or difficulty with reading and/or writing
dys- = difficult
lex/o = word
-ia = condition