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Neuroscience
OCCTH neuroscience
27
Health Care
Graduate
11/02/2011

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Cards

Term
pons
Definition
middle portion of brain stem
Term
metencephalon
Definition
pons + cerebellum
Term
the cerebellopontine angle is of clinical importance bc...
Definition
acoustic neuromas (tumors/vestibular schwannomas) can grow here and affect CN 8(balance, hearing) and eventually CN 7(facial paralysis)
Term
reticular formation
Definition
  • Cluster/network of cell bodies (netting) that run down length of brainstem, runs through pontine sections
  • nucleus ambiguus (cell bodies of CN 9 going to stylopharyngeus mm.)
Term
blood supply to the pons
Definition
basilar artery
Term
tectum
Definition
superior and inferior colliculi[image]
Term
basis pedunculi
Definition
cerebral peduncles
Term
red nuclei
Definition
rubrospinal tract, flexors of upper extremity, found in rostral midbrain
Term
blood supply to the midbrain
Definition

branches of the

  1. posterior cerebral artery
  2. superior cerebellar artery
Term
in the blastocyte, the ECTODERM becomes:
Definition

sensory organs, epidermis, nervous system

Term
anecephaly
Definition
neural tube deficit: cranial end of tube stays open, no forebrain, skull, or hemispheres develop. Babies live 1 week at most
Term
spina bifida
Definition
  • neural tube deficit
  • inferior neuropore doesn't close
  • vertebrae don't close around neural tube
  • cause: less than 400mg folic acid during pregnancy
Term
holoprosencephaly
Definition
  • 1 hemisphere
  • 1 eye or no eye
  • usually die
Term
half of those with ____________ have defects in their neuronal dendrites and spines
Definition
mental retardation
Term
gag reflex
Definition
  • sensory: CN 9
 
  • motor: CN 10 and 12
Term
lesion of hypoglossal nerve CN 12 - test by......
Definition
Having patient stick out tongue
  • UMN lesion: tongue deviates to...?
  • LMN lesion: Tongue deviates and looks wavy(flaccid) on lesioned side
Term
solitary nucleus (doughnut) contains which cranial nerves?
Definition
  • CN 9 visceral sensation (including posterior tongue taste) and info from carotid sinus and carotid arch
  • CN 7 taste
  • CN 10
Term
spit is made by:
Definition
  • CN 9 parotid gland
  • mostly CN 7
Term
Where is the nucleus for CN 12/hypoglossal nerve?
Definition
hypoglossal nucleus in medulla
Term
caudate + putamen =
Definition
striatum
Term
putamen + globus pallidus =
Definition
lentiform nucleus
Term
caudate + putamen+ globus pallidus =
Definition
corpus striatum
Term
structures that make up the basal nuclei
Definition
1. caudate
2. putamen
3. globus pallidus
4. subthalamic nucleus
5. substantia nigra
Term
lesion of the subthalamic nucleus causes...
Definition
contralateral hemibalism (uncontrollable flinging of upper or lower extremity)
Term
Huntington's Disease
Definition
  • genetic disease of the striatum - 90% loss of striatal neurons, loss of Ach
  • causes hyperkinetic disturbances
  • onset at 35-40 years or age, 10-15 years to live
  • flattened, small head of caudate
  • early symptoms: absentmindedness, clumsiness, irritability, depression
  • later symptoms: choreiform movements, cognition and speech decline, severe dementia, psych disorders
Term
sydenham's chorea
Definition
  • autoimmune disease that affects children
  • consequence of rheumatic fever caused by strep infection
  • onset 6 mos. after infection, lasts 3-6 weeks
  • syptoms
    • chorea that is flowing and restless
    • muscular weakness
    • hypotonia
    • behavioral: symptoms of OCD, ADHD, irritability
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