cerebellum

Question 0

intermediate

Answer 0

distal musculature
ongoing motor excution
input: contracting muscle, spinal cord

Question 1

vermis

Answer 1

axial&proximal musculature of the limb
ongoing motor excution, balance truncal coordination
input: contracting muscle, spinal cord
INJURED:Romberg sign: difficulty maintaining posture, gait or balance, loss balance with eye open(DD dorsal column: fall with eyes close)
Truncal ataxia, dysarthria

Question 2

lateral

Answer 2

motor planning
planning and coordination, voluntary movement of extremities
input from cerebral cortex & inferior olivary nucleus
INJURIED: fall toward injured side(ipsilateral), tremor with intended movement without paralysis or paresis ipsilateral

Question 3

flocculonodular lobe

Answer 3

control balance & eye movement, balance

input: lat. vestibular nucleus–> vestibulocerebellar track

Question 4

molecular layer

Answer 4

outer most
basket: GABA-->DC
stella cell:GABA-->DC
parallel fibers (axons of granule cell)
Dendritic tree(purkinje cell&Golgi II)

Question 5

purkinje layer

Answer 5

middle
largest neuron
axon will leave the cortex, inhibiting,efferent pathway
deep cellular nuclei-->(GABA)inhibitory
climbing fibers

Question 6

granule cell layer

Answer 6

inner most, intinsic neuron
synape with purkinje
Golgi: GABA–>granule cell
Form glomeruli with Golgi, granular and mossy fiber
Granule cell body : target DC via glutamate–>excitory
excitory mossy fibers

Question 7

input of cerebellum(+)

Answer 7

ipsilateral inferior peduncle: climbing fiber(+)–>purkinje
contralateral middle peduncle: mossy fibers–>granule cells(+)
P(m)R(i)O(I)V(m)S(m)

Question 8

output of cerebellum(-)

Answer 8

PURKINJE-DEEP NUCLEI-contralateral SUPERIOR PEPUNCLE
*deep nuclei: DON’T EAT GREASY FOOD-(-)
dentate- lateral-(cerebellodentatothalamic tr.)VL of thal
emoliform, globose- intermediate-(cerebellodentatorubral)Red nucleus
Fastigial-vermis-(fastiaiobulbar tr.)medulla
* purkinje axon(trigemino tr.)-(cerellovestibuar TR)-lateral vestib. nuc

Question 9

appendicular ataxia

Answer 9

apraxia 失用症
dysmetria测距不准
dysdiadochokinesia轮替代运动障碍 
intensional tremor
fall with eyes closed
lateral hemispheres

Question 10

sensory ataxia

Answer 10

dorsal columns
unsteady stomping gait with heavy heel strikes
postural instability
+romberg sign

Question 11

flocculonodular lobe ataxia

Answer 11

vestibulocerebellum
postural instability
seperate feet when standing
titubation(forward-backward falling)

Question 12

truncal ataxia

Answer 12

spinocerebellum–vermis
wide-based drunk sailor gait
uncertain start and stops
lateral deviations