LANDERS CEREBELLUM

Question 1

this part of the brain consolidates the information it receives and coordinates motor activity by controlling timing, speed and precision movement?

Answer 1

cerebellum

Question 2

the cerebellum also helps in the prediction of _____?

Answer 2

the consequence of movement

Question 3

what are the roles of the cerebellum?

Answer 3

synergy of muscle movement
maintenance of upright posture
balance and equilibrium
maintenance of muscle tone

Question 4

where does input to the cerebellum come from?

Answer 4

motor cortex
visual cortex
auditory cortex
vestibular system
somatosensory cortex
spinal cerebellar pathways

Question 5

what are the lobes of the cerebellum phylogenetically?

Answer 5

archicerebellum- floculonodular lobe
palleocerebellum- anterior lobe
neocerebellum - posterior lobe

Question 6

what does the cerebellar have relationships with?

Answer 6

sensorimotor cortex, motor and premotor cortex, visual association cortex, spine-olivary tract and red nucleus impacts the ipsilateral olivary complex which impacts the contralateral cerebellum via climbing fibers

Question 7

this lobe of the cerebellum controls antigravity musculature and receives proprioceptive inputs from the trunks and limbs, concerned with control posture and muscle tone

Answer 7

anterior lobe

Question 8

this lobe of the cerebellum receives afferent projections from the cerebral cortex via pontine nuclei concerned with the coordination of skilled movement motor planning initiated by the cerebral cortex?

Answer 8

posterior lobe

Question 9

this lobe of the cerebellum receives information from the vestibular system concerned with spatial orientation, balance and coordination of head and ocular movement?

Answer 9

floculonodular lobe

Question 10

what are the cellular layers of the cerebellar cortex?

Answer 10

I outer molecular layer
II middle purkinje layer
III inner granular layer

Question 11

what are the cell types of cerebellar cortex?

Answer 11

purkinje
granule
mossy
basket
stellate
golgi

Question 12

this layer of the cerebellar cortex contains stellate and basket cells, the dendritic arborization of purkinje cells and parallel fibers of granular cells

Answer 12

I outer molecular layer

Question 13

this layer of the cerebellar cortex contains purkinje cell bodies

Answer 13

II middle (purkinje) layer

Question 14

this layer of the cerebellar cortex contains granular cells and golgi cells which along with the rosettes of mossy fibers from the cerebellar glomeruli?

Answer 14

III inner (granular) layer

Question 15

name this cell of the cerebellar cortex:

only output cell to deep cerebellar nuclei

excited by granule cell

floculonodular output
vermal output
paravermis output

output of lateral hemispheres

Answer 15

purkinje cell

Question 16

this is the primary efferent output of the cerebellum?

Answer 16

deep cerebellar nuclei

Question 17

associated with deep cerebellar nuclei

out to VL nucleus of thalamus then to primary motor and premotor cortex

Answer 17

dentate (lateral lobes)

Question 18

associated with deep cerebellar nuclei

emboliform
globose

why is the globose important?

Answer 18

nucleus interpositus (paravermis)

output to red nucleus and VL nucleus then to premotor cortex then to the spinal cord

Question 19

associated with deep cerebellar nuclei

projects to the vestibular nucleus and vestibulospinal pathway and reticulospinal pathway. Influences posture and activity of proximal limb muscles

Answer 19

fastigial (vermis)

Question 20

afferent and efferent cerebellar pathways are _____?

Answer 20

excitatory afferents from spinal cord and brainstem

inhibitory cerebellar outputs from cortical purkinje cells go to deep cerebellar nuclei