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Neuro 15 > Neuro Ch. 15 up to KCCs, CSV > Flashcards

Neuro Ch. 15 up to KCCs, CSV Flashcards

1
Q

What regions of the CNShave no direct connetion to lower motor neurons?

A

basal ganglia and cerebellum

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2
Q

What is truncal ataxia?

A

unsteady gait

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3
Q

What is appendicular ataxia?

A

ataxia of the limbs

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4
Q

What is ataxia?

A

irregular, uncoordinated movement

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5
Q

What side is ataxia in relation to a cerebellar lesion?

A

ipsilateral

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6
Q

What are the deficits associated with midline lesions of the cerebellar vermis?

A

mainly truncal ataxia and eye movement abnormalities, often accompanied by intesnse vertigo, and N/V

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7
Q

What are deficits associated with midline lesions fo flocculonodular lobes?

A

mainly truncal ataxia and eye movement abnormalities, often accompanied by intesnse vertigo, and N/V

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8
Q

What are deficits associated with lesions lateral to the cerebllar vermis?

A

appendicular ataxia

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9
Q

What are the functions of the cerebellum?

A

intergrates massive sensory and other inputs to coordinate movement and motor planning
articulation of speech
respiratory movements
motor learning
certain higher order cognitive processes possible

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10
Q

What is the largest structure in the posterior fossa?

A

cerebellum

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11
Q

To what does the cerebellum attach?

A

dorsal aspect of pons and rostral medulla, by three white matter peduncles

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12
Q

What forms the roof of the fourth ventricle?

A

cerebellum

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13
Q

What regions/structures does the cerebellum consist of?

A

vermis and two large cerebellar hemispheres

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14
Q

What is the deepest fissure of the cerebellum?

A

primary fissure

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15
Q

Where is the primary fissure?

A

dorsal surface of cerebellum; separating the anterior and posterior lobes

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16
Q

Where is the posterolateral fissure?

A

ventral inferior surface of cerebellum; separating posterior lobe from the floculonodular lobe

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17
Q

Where is the vermis?

A

midline (between the two cerebellar hemishperes?)

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18
Q

The flocculonodular lobe has important connections to?

A

the vestubular nuclei

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19
Q

What is the nodulus?

A

The most inferior portion of the cerebellar vermis; the midline structure to which the two flocculi are connected

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20
Q

What connects the flocculi to the nodulus?

A

thin pedicles

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21
Q

What is the most inferior portion of the cerebellar vermis

A

nodulus

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22
Q

What can cause the tonsils to herniate?

A

mass lesions of the cerebrum or cerebellum, brain swelling with severely increased intracranial pressure

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23
Q

Where can the cerebellar tonsils herniate?

A

through the forament magnum

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24
Q

What is the result of tonsillar herniation through the foramen magnum?

A

compression of the medulla, which can result in death due to impingement on medullary respiratory centers

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25
Q

Where are the cerebellar tonsils?

A

inferior surface

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26
Q

What are the folia?

A

small ridges that run from medial to lateral on the surface of the cerebellum; (like gyri of cerebral cortex)

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27
Q

What forms the walls of the fourth ventricle?

A

cerebellar peduncles

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28
Q

What does the superior cerebellar peduncle mainly carry?

A

output fibers

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29
Q

What does the middle cerebellar peduncle carry?

A

mainly inputs

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30
Q

What does the inferior cerebllar peduncle carry?

A

mainly inputs

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31
Q

What cerebellar peduncles carry mainly outputs from the cerebellum?

A

superior peduncle

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32
Q

What cerebellar peduncles mainly carry inputs to the cerebellum?

A

middle and inferior peduncles

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33
Q

Alternative name of superior peduncle

A

brachium conjunctivum

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34
Q

Alternative name of the middle cereballar peduncle

A

brachium pontis

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35
Q

Alternative name of the inferior cerebellar peduncle

A

restiform body

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36
Q

How is the cerebellum divided?

A

into 3 functional regions based on input and output connections

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37
Q

What are the three functional regiosn of the cerebellum?

A

(medial) vermis and flocculonodlar lobes, intermediate hemispheres, lateral hemispheres (lateral)

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38
Q

What is the largest part of the cerebellum?

A

lateral hemispheres

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39
Q

What region of the cerebellum can have a large portion removed unilaterally without severe deficits?

A

lateral hemispheres

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40
Q

What is the function of the lateral hemispheres?

A

motor planning for extremities

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41
Q

What is the function of the intermediate hemispheres?

A

distal limb coordination (control of distal appendicular muscles in arms and legs)

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42
Q

What is the function of the vermis?

A

proximal limb and trunk coordination

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43
Q

What is the function of the flocculonodular lobe?

A

balance and vestibulo-ocular reflexes

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44
Q

What motor pathways are influenced by the cerebellar lateral hemispheres?

A

lateral corticospinal tract

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45
Q

What motor pathways are influenced by the cerebellar intermediate hemispheres?

A

lateral corticospinal trcat and rubrospinal tract

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46
Q

What motor pathways are influenced by the vermis?

A

anterior corticospinal tract, reticulospinal tract, vestibulospinal tract, and tectospinal tract

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47
Q

What motor pathways are influenced by the flocculonodular lobe?

A

medial longitudinal fasciculus (MLF)

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48
Q

What cerebellar regions influence the lateral corticospinal tract?

A

lateral and intermediate hemispheres

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49
Q

What cerebellar regions influence the rubrospinal tract?

A

intermediate hemispheres

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50
Q

What cerebellar regions influence the anterior corticospinal tract?

A

vermis

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51
Q

What cerebellar regions influence the reticulospinal tract?

A

vermis

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52
Q

What cerebellar regions influence the vestibulospinal tract?

A

vermis

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53
Q

What cerebellar regions influence the tectospinal tract?

A

vermis

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54
Q

What cerebllar regions influence the MLF?

A

flocculonodular lobe

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55
Q

Where does the superior cerebellar peduncle decussate?

A

caudal midbrain - at level of inferior colliculi

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56
Q

What nuclei are all cerebellar outputs relayed by?

A

Deep cerebellar and vestibular nuclei

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57
Q

What are the deep cerebellar nuclei from lateral to medial?

A

Dentate, Emboliform, Globose, Fastigial

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58
Q

What are the vestibular nuclei?

A

superior, medial and lateral

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59
Q

From what region does the dentate nuclei receive inputs?

A

lateral cerebellar hemispheres

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60
Q

From what region do the interposed nuclei receive inputs?

A

intermediate hemispheres

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61
Q

From what region does the fastigial nucleus receive inputs?

A

mostly vermis, small inputs from flocculonodular lobe

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62
Q

From what region do the vestibular nuclei receive inputs?

A

flocculonodular lobe

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63
Q

What is the largest deep cerebellar nuclei?

A

dentate nucleus

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64
Q

What nuclei is active just before voluntary movements?

A

dentate nucleus

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65
Q

What nuclei are active during and in relation to movements?

A

interposed nuclei

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66
Q

When is the dentate nucleus active?

A

just before voluntary movements

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67
Q

When are the interposed nuclei active?

A

during and in relation to movements

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68
Q

What are the interposed nuclei?

A

Emboliform and Globose

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69
Q

What are the layers of the cerebellar cortex? (superficial to deep)

A

molecular layer, purkinje cell layer, granule cell layer

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70
Q

What is contained within the molecular layer?

A

unmyelenated granule cell axons, purkinje cell dendrites, interneuons (basket cells, stellate cells), golgi cell dendrites

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71
Q

What cell type is extremely numerous?

A

granule cells - rival total of remainder of nervous system

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72
Q

What aer the two primary kinds of synaptic inputs in the cerebellum?

A

mossy fibers and climbing fibers

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73
Q

Where do mossy fibers arise from?

A

pontine nuclei and numerous regions

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74
Q

Where do mossy fibers synapse?

A

dendrites of granule cells

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75
Q

Where do granule cells synapse?

A

after bifurcating to form parallel fibers, synapse on numerous Purkinje cell dendrites, stellate cells, basket cells, and golgi cells

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76
Q

Are granule cells excitatory or inhibitory?

A

excitatory

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77
Q

What carries all outputs of the cerebellar cortex?

A

Purkinje cell axons into cerebellar white matter (to deep cerebellar and vestibular nuclei)

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78
Q

Where do Purkinje cells synapse?

A

deep cerebellar and vestibular nuclei

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79
Q

Are Purkinje cells excitatory or inhibitory?

A

inhibitory

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80
Q

Where do climbing fibers arise?

A

exclusively from neurons in the contralateral inferior olivary nucleus

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81
Q

Where do climbing fibers synapse?

A

they wrap around the cell body and proximal dendritic tree, forming powerful excitatory synapses on 10 Purkinje cells

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82
Q

What is the effect of climbinging fibers?

A

excitatory, having a strong modulatory effect on the response of Purkinje cells, causing a sustained decrease in their response to synaptic inputs from parallel fibers

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83
Q

How many climbing fibers is each Purkinje cell excited by?

A

only 1, although each climbing fiber synapses with about 10 Purkinje cells

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84
Q

Are climbing fibers excitatory or inhibitory?

A

excitatory

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85
Q

Where are basket cells located?

A

molecular layer

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86
Q

Where are stellate cells located?

A

molecular layer

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87
Q

Where do stellate cells terminate?

A

Purkinje cell dendrites in the molecular layer

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88
Q

What is the affect of stellate cells?

A

lateral inhibition of adjacent Purkinje cells (narrow the spatial extent of excitatory inputs to Purkinje cells - enhanced signal resolution in the spatial domain)

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89
Q

Are stellate cells excitatory or inhibitory?

A

inhibitory

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90
Q

Where do basket cells synapse?

A

Purkinje cell bodies

91
Q

Are basket cells excitatory or inhibitory?

A

inhibitory

92
Q

Where are golgi cells located?

A

granule cell layer

93
Q

What is the function of Golgi cells?

A

provide feedback inhibition onto granule cells dendrites, which shortens the duration of excitatory inputs to the granule cells (enhanced signal resolution in the time domain)

94
Q

What is the input to Golgi cells?

A

parallel fibers in the molecular layer

95
Q

Are Golgi cells excitatory or inhibitory?

A

inhibitory

96
Q

Where do Golgi cells synapse?

A

granule cell dendrites in the granule layer

97
Q

What is the affect of basket cells?

A

lateral inhibition of adjacent Purkinje cells (narrow the spatial extent of excitatory inputs to Purkinje cells - enhanced signal resolution in the spatial domain)

98
Q

What is the cerebellar glomuerulus

A

a region in the granule cell layer with complex synaptic interactions, containing axons and dendrites encapsulated in a glial sheath

99
Q

Where are cerebellar glomeruli located?

A

granule cell layer

100
Q

What is contained in cerebellar glomeruli?

A

large mossy fiber and Golgi cell axon terminals, which sysapse on granule cell dendrites

101
Q

What encapsulates cerebellar goleruli?

A

glial sheath

102
Q

How do cerebellar glomeruli appear?

A

small clearings among granule cells

103
Q

What are the excitatory connections of the cerebellar cortex?

A

All the axons projecting upward: mossy fibers, climbing fibers, and granule cell parallel fibers

104
Q

What are the inhibitory connection of the cerebellar cortex?

A

All axons projecting downward: Purkinje cells, stellate cells, basket cells, and Golgi cells

105
Q

Are outputs of the deep cerebllar nuclei excitatory or inhibitory?

A

excitatory (they are not part of the cerebellar cortex)

106
Q

What do lesions of the lateral cerebellum affect?

A

distal limb coordination

107
Q

What do lesions of the medial cerebellum affect?

A

trunk control, posture, balance, and gait

108
Q

What side do cerebellar lesions affecting coordination occur on?

A

ipsilateral

109
Q

What are cerebellar lesions ipsilateral?

A

the pathways are double crossed

110
Q

Where do cerebellar outputs first decussate?

A

in the decussation of the superior cerebellar peduncle in the midbrain

111
Q

Where is the second crossing of cerebllar outputs?

A

corticospinal tract: pyramidal decussation

rubrospinal tract: ventral tegmental decussation

112
Q

What side does lesions of the vermis occur on?

A

bilateral?

113
Q

What aren’t lesions of the vermis typically unilateral?

A

the medial motor systems influence the proximal trunk muscles bilaterally

114
Q

What are the fibers that enter the ventral lateral nucleus?

A

thalamic fasciculus

115
Q

What are the more anterior parts of the thalamic fasciculus?

A

outputs from the basal ganglia

116
Q

Where do cerebellar outputs terminate?

A

posterior VL (VLp; ventral lateral pars caudalis)

117
Q

Where does the lateral cerebellar hemispehre project (first synapse)?

A

dentate nucleus

118
Q

Where does the dentate nucleus project?

A

via the superior cerebellar peduncle to the contralateral VL and parvocellular red nucleus

119
Q

Where does the superior cerebellar peduncle decussate?

A

midbrain

120
Q

Where do fibers running throught the cerebellar peduncle project?

A

contralateral VL (after decussating in the midbrain)

121
Q

Where does the VL project?

A

motor, premotor, supplementary motor cortex, and parietal lobe to influence motor planning in the corticospinal system

122
Q

Where does the parvocellular division of the red nucleus project?

A

ipsilateral inferior olivary nucleus via central tegmental tract

123
Q

Through what tract do fibers from the parvocellular red nucleus project?

A

central temental tract

124
Q

What part of the red nucleus is th magnocellular division?

A

caudal division, gives rise to the rubrospinal tract

125
Q

Where does the intermediate hemisphere project?

A

interposed nuclei (emboliform and globose)

126
Q

Where do the interposed nuclei project?

A

via the superior cerebllar peduncle to the contralateral posterior VL, and magnocellular division of the red nucleus

127
Q

What tract is influenced by the magnocellular division of the red nucleus?

A

rubrospinal tract?

128
Q

What nuclei project to the parvocellular division of the red nucleu?

A

dentate nucleus (from lateral hemispheres)

129
Q

What nuclei project to the magnocellular division of the red nucleus?

A

interposed nuclei (emboliform and globose) (from intermediate hemispheres)

130
Q

Where does the vermis first project to?

A

fastigial nucleus

131
Q

Where do fibers from the fastigial nuclei project?

A

uncinate fasciculus: contralateral vestibular nuclei
juxtarestiform body: ipsilateral vestibular nuclei and reticular formation
some through superior cerebellar peduncle: VL to motor cortex to anterior corticospinal tract; and also tectum

132
Q

What carries the outputs from the fastigial nucleus?

A

mostly uncinate process and juxtarestiform body, small amount by sueprior cerebellar peduncle

133
Q

Where does the uncinate fasciculus run?

A

loops over the superior cerebellar peduncle

134
Q

Where do fibers from the uncinate fasciculus go?

A

after looping over sup cer ped, run caudally through the juxtarestiform body to the vestibular nuclei

135
Q

Where does the juxtarestiform body run?

A

on the lateral wall of the fourth ventricle, must medial to the inferior cerebellar peduncle (restiform body)

136
Q

What fibers are carried in the juxtarestiform body?

A

fibers in both directions between the vestibular nuclei and the cerebellum

137
Q

Where do fibers from the juxtarestiform body project?

A

ipsilateral vestibular nuclei and reticular formation

138
Q

What tract is influenced by the juxtarestiform fibers projecting into the vestibular nuclei?

A

vestibular spinal tract

139
Q

What tract is influenced by the juxtarestiform fibers projecting into the reticular formation?

A

resticulospinal tract

140
Q

What tract is influenced by the fastigial nucleus fibers that project to the VL?

A

VL to motor and association cortex to influence anterior corticospinal tract

141
Q

What tract is influenced by the fastigial nucleus fibers that project to the tectum?

A

tectospinal tract

142
Q

Where do fibers from the inferior vermis first synapse?

A

through juxtarestiform to ipsilateral vestibular nuclei

143
Q

Where do fibers from the flocculonodular lobe first synapse?

A

through juxtarestiform to ipsilateral vestibular nuclei, small input to fastigial nucleus

144
Q

What tract do vestibular nuclei outputs originating from flocculonodular lobe influence?

A

MLF and eye movement pathways

145
Q

What tract do vestibular nuclei outputs originating from inferior vermis influence?

A

MFL and eye movement pathways

146
Q

What is the vestibulocerebellum?

A

the flocculonodular lobes and inferior vermis - because they project mainly to the vestibular nuclei via juxtarestiform body

147
Q

Connections between what regions are important for equilibrium and balance?

A

cerebellum and vestibular nuclei

148
Q

What is the exception to the principle that cerebellum and basal ganglia do not project directly to LMNs?

A

some fastigial neurons project directly to the upper cervical spinal cord

149
Q

What carries cerebellar inputs?

A

mossy fibers, exept those from the inferior olivary nucleus which is carried by climbing fibers

150
Q

Where do collaterals from inputs to the cerebellar cortex synapse?

A

deep cerebellar nuclei

151
Q

Where do inputs to the cerebellum arise from?

A 
widespread areas:
cerebral cortex: virtually all
sensory modalities: vestibular, visual, auditory, and somatosensory
brainstem nuclei
spinal cord
152
Q

Where do corticopontine fibers arise from?

A

cerebral cortex: frontal, temporal, parietal, and occipital lobes

153
Q

What is the pathway for cerebellar inputs from the cortex?

A

pontocerebellar fibers (from corticopontine fibers)

154
Q

What is the largest contribution of corticopontine fibers to the cerebellum?

A

primary sensory cortex, primary motor cortex, and some of visual cortex (travel through pontocerebellar fiber pathway)

155
Q

Where do corticopontine fibers project?

A

through the internal capsule to pontine nuclei

156
Q

Where are the pontine nuclei located?

A

in ventral pons interspersed with descending corticospinal and corticobulbar fibers

157
Q

Where to pontocerebellar fibers project?

A

from pontine nuclei, cross midline to contralateral middle cerebellar peduncle

158
Q

What are the spinocerebellar pathways?

A

dorsal spinocerebellar, cuneocerebellar, ventral spinocerebellar, and rostral spinocerebellar tracts

159
Q

What is the function of the dorsal spinocerebellar tract?

A

provides rapid feedback to the cerebellum about ongoing limb movments so adjustments can be made - leg proprioceptors

160
Q

What cerebellar input pathways provide information about limb movments?

A

dorsal spinocerebellar tract and cuneocerebellar tract

161
Q

What is the difference between posterior column and spinocerebellar afferents?

A

spinocerebellar afferents don’t reach conscious perception, posterior column fibers do

162
Q

What is the origin of inputs to the dorsal spinocerebellar tract?

A

leg proprioceptors from dorsal root ganglia through gracile fascicle

163
Q

Where do leg proprioceptors first enter the spinal cord?

A

dorsal root ganglia

164
Q

Where do leg proprioceptors first travel after entering via dorsal root ganglia?

A

gracile fascile (posterior column)

165
Q

Where do leg proprioceptors synapse before entering the dorsal spinocerebellar tract?

A

nucleus dorsalis of Clark

166
Q

Where are the cells of the dorsal spinocerebellar tract located?

A

nucleus dorsalis of Clark

167
Q

Where do cells of the dorsal spinocerebellar tract travel?

A

ascend in ipsilateral dorsal funiculus, giving rise to mossy fibers, travel through the inferior cerebellar peduncle to ipsilateral cerebellum

168
Q

Where is the nucleus dorsalis of Clark located in the spinal cord?

A

a long column in dorsomedial spinal cord gray matter intermediate zone

169
Q

What level is the nucleus dorsalis of Clark?

A

long column running through spinal cord from C8-L2/L3

170
Q

What pathways project through the inferior cerbellar peduncle?

A

dorsal spinocerebellar tract, cuneocerebellar tract, and climbing fibers

171
Q

What is the function of the cuneocerebellar tract?

A

provide rapid feedback to the cerebllum about ongoing movements, allowing fine adjustments to be made; arm proprioception

172
Q

What sensory information travels in the cuneocerebellar tract?

A

arm and neck proprioception

173
Q

What sensory information travels in the dorsal spinocerebellar tract?

A

leg proprioception

174
Q

What is the main origin of the cuneocerebellar tract?

A

arm and neck proprioception throught the dorsal root ganglia, to the external cuneat nucleus

175
Q

What does sensory information from arm proprioception first synapse on their way to the cerebellum?

A

external cuneate nucleus

176
Q

Where is the external cuneate nucleus located?

A

in the medulla just lateral to the cuneat nucleus (aka accessory or lateral cuneate nucleus)

177
Q

Where are the cells of the cuneocerebellar tract located?

A

external cuneate nucleus

178
Q

Where does the cuneocerebellar tract travel?

A

inferior cerebellar peduncle to the ipsilateral cerebellum

179
Q

Where do cells from the ventral spinocerebellar tract arise?

A

spinal border cells and intermediate zone neurons

180
Q

Where are spinal border cells located?

A

outer edge of central gray matter of spinal cord

181
Q

What is the function of the ventral spinocerebellar tract?

A

convey info about activity of spinal cord interneurons reflecting amount of activity in descending pathways; leg interneurons

182
Q

What sensory information is conveyed by the ventral spinocerebellar tract?

A

leg interneuron feedback of descending pathway activity

183
Q

What tracts convey information about activity of spinal cord interneurons reflexting amount of activity in descending pathways?

A

ventral and rostral spinocerebellar tracts (leg and arm/neck respectively)

184
Q

Where do ventral spinocerebellar tracts decussate?

A
  1. ventral commissure

2. superior cerebellar peduncle decussation (caudal pons?)

185
Q

Where does the ventral spinocerebellar tract ascend?

A

contralaterally, ventral to dorsal spinocerebellar tract, and periopheral to anterolateral systems

186
Q

What is the final destination fo the ventral spinocerebellar tract?

A

ipsilateral cerebellum

187
Q

Through what cerebellar peduncle does the ventral spinocerebellar tract travel?

A

superior cerebellar peduncle

188
Q

What is the function of the rostral spinocerebellar tract?

A

convey info about activity of spinal cord interneurons reflecting amount of activity in descending pathways; arm and neck interneurons

189
Q

What sensory info is conveyed by the ventral spinocerebellar tract?

A

arm interneuron feedback of descending pathway activity

190
Q

What cerebral peduncle does the rostral spinocerebellar tract travel through?

A

both inferior (ipsilateral) and superior (double crossed so contralateral?)

191
Q

What spinocerebellar tracts travel through the superior cerebellar peduncle?

A

ventral and rostral spinocerebellar tracts

192
Q

What spinocerebellar tract travels through both cerebellar peduncles?

A

rostral spinocerebellar tract

193
Q

What is the main origin of the climbing fibers?

A

parvocellular red nucleus, cortex, brainstem, and spinal cord

194
Q

Where are cell bodies of climbing fibers located?

A

inferior olivary nucleus

195
Q

Where does the inferior olivary nucleus send its fibers?

A

olivocerebellar fibers cross to the medulla, travel through the inferior cerebellar peduncle, and terminate as climbing fibers in the contralateral cerebellum

196
Q

What is the loop formed from the lateral cerebellum?

A

lateral cerebellum - dentate nucleus - cross through superior cerebellar peduncle - contralateral parvocellular red nucleus - inferior olivary nucleus - cross in medulla - inferior cerebellar peduncle - original cerebellar hemisphere

197
Q

What connects the vestibular system and cerebellum?

A

vestibular inputs from Scarpa’s vestibular ganglia dn vestibular nuclei (also MLF?)

198
Q

What is the main origin of vestibular inputs?

A

vestibular system

199
Q

Where are cells of vestibular inputs located?

A

primary vestibular sensory neurons: vestibular ganglia

secondary vestibular sensory neurons: vestibular nuclei

200
Q

Where do vestibular inputs travel?

A

through the juxtarestiform body to the ipsilateral inferior cerebellar vermis and flocculonodular lobes

201
Q

What is an additional input to the flocculus?

A

visual inputs related to retinal slip, important for control of smooth pursuit of eye moevements

202
Q

What is the function of noradrenergic inputs to the cerebellum?

A

neuromodulatory role

203
Q

Where do noradrenergic inputs to the cerebellum originate?

A

locus ceruleus

204
Q

Where do noradrenergic inputs project?

A

diffusely throughout the cerebellar cortex

205
Q

What is the function of serotonergic inputs to the cerebellum?

A

neuromodulatory role

206
Q

Where do serotonergic inputs to the cerebellum originate?

A

raphe nuclei

207
Q

Where do serotonergic inputs project?

A

diffusely throughout the cerebellar cortex

208
Q

What supplies the blood supply to the cerebellum, and where do they arise?

A

PICA (posterior inferior cerebellar artery) - usually from vertebral
AICA (anterior inferior cerebellar artery) - lower basilar
SCA (superior cerebellar artery) - top of basilar, just below PCA

209
Q

What regions does the PICA supply?

A

lateral medulla, most of inferior half of cerebellum, and inferior vermis

210
Q

What regions does the AICA supply?

A

inferior lateral pons, middle cerebellar peduncle, and a strip of ventral cerebellum b/w PICA and SCA territories - including flocculus

211
Q

What regions does the SCA supply?

A

upper lateral pons, superior cerebellar peduncle, and most of superior half of cerebllar hemisphere - including deep cerebellar nuclei and superior vermis

212
Q

What blood supplies the lateral medulla?

A

PICA

213
Q

What blood supplies the inferior half of the cerebellum?

A

PICA

214
Q

What blood supplies the inferior vermis?

A

PICA

215
Q

What blood supplies the inferior lateral pons?

A

AICA

216
Q

What blood supplies the middle cerebellar peduncle?

A

AICA

217
Q

What blood supplies the strip of ventral cerebellum b/w PICA and SCA territories?

A

AICA

218
Q

What blood supplies the flocculus?

A

AICA

219
Q

What blood supplies the upper lateral pons

A

SCA

220
Q

What blood supplies the superior cerebellar peduncle?

A

SCA

221
Q

What blood supplies the superior half of the cerebellar hemisphere?

A

SCA

222
Q

What blood supplies the deep cerebllar nuclei?

A

SCA

223
Q

What blood supplies the superior vermis?

A

SCA

Neuro 15 (1 decks)

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