Cerebellum

Question 1

cerebellar lobes (3)

Answer 1

archicerebellum (flocculonodular)
paleocerebellum (anterior)
neocerebellum (posterior)

Question 2

function of archicerebellum

Answer 2

(flocculonodular lobe)

maintaining balance and controlling eye movement

Question 3

function of paleocerebellum

Answer 3

(anterior lobe)

control of limb and trunk movements

Question 4

function of neocerebellum

Answer 4

(posterior lobe)

movement planning and nonmotor functions

Question 5

primary fissure

Answer 5

fissure separating anterior and posterior cerebellar lobes

Question 6

posterolateral fissure

Answer 6

fissure separating posterior and flocculonodular lobes

Question 7

major sets of input to the cerebellum (2)

Answer 7

climbing fibers

mossy fibers

Question 8

climbing fibers - origin

Answer 8

originate from the inferior olivary nucleus

Question 9

climbing fibers - synapse

Answer 9

synapse on purkinje neurons

Question 10

mossy fibers - origin

Answer 10

originate from the brainstem and spinal cord nuclei

Question 11

mossy fibers - synapse

Answer 11

synapse on interneurons then purkinje neurons

Question 12

functional divisions of cerebellum (3)

Answer 12

spinocerebellum
cerebrocerebellum
vestibulocerebellum

Question 13

function of spinocerebellum

Answer 13

controls body musculature

Question 14

function of cerebrocerebellum

Answer 14

planning of movement

Question 15

function of vestibulocerebellum

Answer 15

maintaining balance and controlling eye movement

Question 16

Which functional cerebellar division contains the vermis and immediate hemisphere?

Answer 16

spinocerebellum

Question 17

Where does the input to the cerebrocerebellum come from?

Answer 17

cerebral cortex

Question 18

Where does the input to the vestibulocerebellum come from?

Answer 18

vestibular labyrinth and vestibular nuclei

Question 19

functions of cerebellum (5)

Answer 19

coordination of movement
posture
equilibrium
some cognitive functions
proprioception

Question 20

symptoms of neocerebellar (posterior lobe) lesion (8)

Answer 20

ipsilateral ataxia, dysmetria, movement decomposition, asthenia, intention tremors, rebound phenomenon, ataxic gait, voice staccato

Question 21

symptoms of paleocerebellar (anterior lobe) lesion (1)

Answer 21

extensor tone increase

Question 22

symptoms of archicerebellar (flocculonodular lobe) lesions (3)

Answer 22

ataxia, balance deficits, nystagmus

Question 23

ataxia

Answer 23

inability to coordinate movement

Question 24

brainstem functions (vegetative)

Answer 24

respiration

primitive stereotyped reflexes

Question 25

primitive stereotyped reflexes of the brainstem (3)

Answer 25

cough and gag
pupillary
swallowing

Question 26

functions of reticular formation (4)

Answer 26

regulates consciousness
controls muscle tone
controls pain
regulates circadian rhythm

Question 27

subsystems of reticular formation (2)

Answer 27

reticular activating system

reticular inhibiting system

Question 28

functions of reticular activating system (3)

Answer 28

alerts cortex to incoming sensory information
filters data
arouses body

Question 29

function of reticular inhibiting system

Answer 29

receives messages to calm body down