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22 Cards in this Set

  • Front
  • Back
location of brainstem?
posterior part of the brain, adjoining and structurally continuous with the spinal cord.
tracts/pathways which pass through the brainstem?
● the corticospinal tract (motor)
● the posterior column-medial lemniscus pathway (fine touch, vibration sensation and proprioception)
● the spinothalamic tract (pain, temperature, itch and crude touch).
frontal lobe functions?
personality
emotional response
social behaviour
parietal lobe - dominant side functions?
calculation
language
planned movement
appreciation of size, shape, weight and texture
parietal lobe - non dominant side functions?
spatial orientation
constructional skills
occipital lobe functions?
analysis of vision
temporal lobe - dominant side functions?
auditory perception
speech, language
verbal memory
smell
temporal lobe - non dominant side functions?
auditory perception
music, tone sequences
non-verbal memory (faces, shapes, music)
smell
examination of trigeminal (V) nerve?
1) sensory
2) motor
3) 2 reflexes

1) light touch in V1 V2 V3 divisions
pain in same divs
touch ant 2/3 tongue (maybe use tongue depressor)

2) obs mms of mastication (masseter/temporalis/med+lat pterygoid)
clench teeth
active resist jaw opening

3) 1st reflex = corneal (bilat = V1 lesion, unilat = VII lesion)
2nd reflex = jaw jerk (norm is absent or just present)
examination of CNVII?
motor & taste

1) wrinkle forehead/bare teeth/resist eyes opening/blow out cheeks resisted

2) sugar/salt/vinegar ant 2/3 tongue
why assess XI and X together?
unilateral IX lesions rare
unilat lesion of X results in?
deviation of uvula when saying aaah
bilat lesion of X can cause what type of palsies? associated with what symptoms?
bulbar and pseudobulbar palsies.
sxx = dysphagia, dysarthria ("ARTICULATE") and either UMNL or LMNL of XII
common causes of unilat IX and X lesions?
skull base tumours (inc meningioma)
skull base #
lateral medullary syndrome
common causes of recurrent laryngeal n (branch of X) lesion?
lung cancer
mediastinal lymphoma
aortic arch aneurysm
post-thyroid surgery
common causes of bilat X lesion?
progressive bulbar palsy (motor neuron disease)
bilat supranuclear lesions (pseudobulbar palsy): CVD, MS
corticospinal tracts? aka PYRAMIDAL
motor power
lateral spinothalamic tract?
pain + temp
anterior (or ventral) spinothalamic tract?
crude touch
Posterior column-medial lemniscus pathway?
fine touch, vibration, proprioception
Spinocerebellar tract?
proprioception
extrapyramidal tracts?
motor reflexes + coordination