nervous system Flashcards
plexus
network of interconnecting spinal nerves
endorphin
hormone that relives pain
acetylcholine
hormone that influences muscle action
norepinephrine
affects alertness
pia mater
third layer of meninges located nearest the brain and spinal cord
cerebrum
largest portion of the brain
thalamus
below the cerebrum
autonomic nervous system
involuntary action
cephelagia
headache
migraine headache
headache on one side of the head
encephalocele
herniation of brain through skull
meningocele
herniation of meninges through a skull or spinal cord
encephalitis
brain inflammation
Reyes syndrome
serious disorder in children characterized by confusion and vomiting
tetanus
lockjaw
huntingtons disease
genetic disorder: degeneration of nerve cells
amnesia
memory disturbances
concussion
violent shaking up of brain
cerebral contusion
bruising of brain tissue
contrecoup
Injury beneath skull opposite to impact
lethary
low level of consciousness, high levels of drowsiness, and apathy
apathy
low level of activity
stupor
unresponsive state
syncope
fainting
delirium
acute condition of confusion, disorientation
ischemic stroke
narrowing/blockage of carotid artery
embolic stroke
blood clot delivers through bloodstream
hemorrhagic stroke
leak of blood vessels of the brain
arteriovenous malformation
hemorrhagic strokes due to abnormal vein and artery connections
narcolepsy
brief episodes of falling asleep during the day
somnambulism
performing an activity without awakening
noctambulism
sleep walking