Cerebellum

Question 1

little brain

Answer 1

cerebellum

Question 2

cerebellar nuclei

Answer 2

fastigial
interposed
dentate

Question 3

3 large fiber tracts that attache to the cerebrum

more fibers project into cerebellum than exit (good at processing info)

Answer 3

peduncles

Question 4

largely input peduncle

Answer 4

inferior

Question 5

input only peduncle

Answer 5

middle

Question 6

largely output peduncle

Answer 6

superior

Question 7

layers of cerebellar cortex

Answer 7

purkinje cells (output)
climbing and mossy fibers (input)

Question 8

climbing fibers synapse directly on

Answer 8

purkinje cells

Question 9

what excites purkinje fibers

Answer 9

parallel fibers and climbing fibers

Question 10

climbing fibers and purkinjes fiber relationship

Answer 10

c teach p how to respond to particular patterns of parallel fiver inputs

Question 11

purkinje cells outpus to cerebellar nuclei is

Answer 11

inhibitory

Question 12

primary cell=

Answer 12

purkinje fibers

Question 13

each purkinje fiber recieves weak input from many

Answer 13

parallel fibers

Question 14

each purkinje fiber recieves strong input from one

Answer 14

climbing fiber

Question 15

climbing fibers strongly influence the function of the

Answer 15

purkinje fibers (teach)

Question 16

balance
feedback and feedforward info
sensory info integrated into movments
timing
motor learning

Answer 16

cerebellar functions

Question 17

vestibulocerebellum (flocculonodular) func

Answer 17

balance (help maintain)

Question 18

spinocerbellum (vermis and paravermis/medial hemisphere) func

Answer 18

afferent info from body about position
posture
peripheral afferent from body

Question 19

cerebrocerebellum (lateral hemisphere) func

Answer 19

speaks to the cortex
higher level processing
learning
goals

Question 20

descending tracts of the vestibulocerebellum

Answer 20

control extension and proximal muscles

important for postural control and balance, also coordinates eye and head movements

Question 21

descending tracts of the spinocerebellum

Answer 21

paravermal section primarily influence limb movement

Question 22

input tot he paravermal section

Answer 22

projections from motor cortex and spinal cord

Question 23

output to the paravermal section

Answer 23

via interposed n. through VL/VA to M1 and red n.

Question 24

compares commands from motor cortex with actual position and velocity of moving pars and can issue correcting signals

Answer 24

func of the paravermal section

Question 25

descending tracts of the cerebrocerebellum

Answer 25

lateral hemisphere

Question 26

input to the lateral hemisphere

Answer 26

via pontine n. from widespread areas of cerebral cortex

Question 27

output to the lateral hemisphere

Answer 27

via dentate and VL to premotor and motor cortex

Question 28

involved in planning and programming of voluntary, learned, skillful, movement via influencing output of motor cortex

Answer 28

lateral hemisphere func

Question 29

cerebellum affects ____ limb function

Answer 29

ipsilateral

Question 30

where does the cerebellum cross

Answer 30

crosses in contralateral cortex and again in descending tracts

Question 31

balance disorders
ataxia
pt maintains full control of limbs when supine

Answer 31

damage of vertibulocerebellum and vermis

Question 32

loss of eye control

difficulty with pursuit eye movments or making accurate voluntary eye movements

Answer 32

damage of vestibulocerebellum

Question 33

damage to _____ of spinocerebellum disrupts accurate execution of movements

Answer 33

paravermis

Question 34

reduces activity of corticospinal and rubrospinal tracts

disrupts the accuracy of reaching movements because of inceased error in timing components of movements

Answer 34

damage to paravermis of spinocerebellum, cerebellum

Question 35

poor coordination joints

Answer 35

ataxia

Question 36

correction of error

Answer 36

intention temor

Question 37

reflex disruption

Answer 37

pendular reflex

Question 38

result in errors in movement timing and delays in initiating movements

• disrupted sequential movements
• timing func not limited to motor events

Answer 38

lesions to lateral cerebellar hemispheres

Question 39

info about how a behavior was accomplished

Answer 39

feedback

Question 40

prediction about what is coming

Answer 40

feedforward

Question 41

goes to ventral anterior and ventral leteral nucleus of the thalamus before heading to the cortex

Answer 41

output of the basal ganglia

Question 42

goes to ventral lateral and ventral anterior nucleus of the thalamus before heading to the cortes

Answer 42

output of the cerebellum

Question 43

lateral hemisphere is associated with

Answer 43

word association learning
silent reading
pegboard puzzle solving

Question 44

2 loops of cerebrocerebellum
to thalamus to premotor and primary motor areas
to red nucleus to inferior olivaryn and back to cerebellum forming feedback loop

Answer 44

support mental rehersal of movements

Question 45

incorporation of error related feedback into up coming movement during motor learning

Answer 45

paravermis (medial hemisphere

Question 46

important in acquiring and processing sensory info for tasks requiring complex spatial and temporal judgments

Answer 46

dentate

Question 47

after cerebellar stroke, individuals cannot

Answer 47

adapt performance according to environment