Neuro Test 3: Cerebellum

Front 1

List the lobes of the cerebellum.

Back 1

Anterior lobe
Middle (posterior) lobe
Flocculonodular lobe

Front 2

Gray-matter and white-matter cortex: Which is internal and which is external?

Back 2

Gray-matter cortex is external and white-matter cortex is internal.

Front 3

What are the 3 layers of cerebellar cortex?

Back 3

1. Molecular layer (external)
2. Purkinje cell layer
3. Granular layer (internal)

Front 4

Stellate cell

Back 4

inhibitory interneuron found in molecular layer of cerebellar cortex

Front 5

Basket cell

Back 5

inhibitory interneuron found in molecular layer of cerebellar cortex

Front 6

Which are the only cells that leave the cerebellar cortex?

Back 6

Purkinje cells

Front 7

In which cortical layer are the cell bodies of Purkinje cells located?

Back 7

Purkinje cell layer

Front 8

In which cortical layer are the dendrites of Purkinje cells located?

Back 8

molecular layer

Front 9

Are the axons of Purkinje cells myelinated or unmyelinated?

Back 9

myelinated

Front 10

The dendritic spines of Purkinje cells make excitatory synapses with what type of granular cell?

Back 10

mossy cells

Front 11

Which type of cerebellar granular layer cell is an inhibitory interneuron?

Back 11

Golgi cells

Front 12

Which type of granular layer cell provides a negative feedback loop?

Back 12

Golgi cells

Front 13

Afferent fibers of the arbor vitae enter through which peduncle(s)?

Back 13

inferior peduncle
middle peduncle

Front 14

Efferent fibers of the arbor vitae leave through which peduncle(s)?

Back 14

superior peduncle

Front 15

The efferent fibers of the arbor vitae are derived from what cell type?

Back 15

Purkinje cells

Front 16

Are afferent fibers excitatory or inhibitory to Purkinje cells?

Back 16

excitatory

Front 17

Which fibers are excitatory to Purkinje cells?

Back 17

mossy fibers
climbing fibers

Front 18

Which fibers compose the largest afferent input to Purkinje cells?

Back 18

mossy fibers

Front 19

Climbing fibers come from which nucleus?

Back 19

contralateral inferior olivary nucleus

Front 20

Climbing fibers branch into how many terminal branches?

Back 20

10 to 15 terminal branches

Front 21

Each Purkinje cell gets input from how many climbing cell terminal branches?

Back 21

only one branch

Front 22

Are Purkinje axons afferent or efferent?

Back 22

efferent

Front 23

Climbing fiber terminal branches interact with how many Purkinje cells?

Back 23

> 1

Front 24

List the types of intercerebellar nuclei.

Back 24

Dentate nuclei
Emboliform nuclei
Globose nuclei
Fastigial nuclei

Front 25

Which are the largest intercerebellar nuclei type?

Back 25

Dentate nuclei

Front 26

Output from the lateral portion of cerebellar cortex goes to which intercerebellar nuclei?

Back 26

Dentate nuclei

Front 27

Output from intermediate cerebellar cortical areas goes to which intercerebellar nuclei?

Back 27

Emboliform nuclei
Globose nuclei

Front 28

Vermis output goes to which intercerebellar nuclei?

Back 28

Fastigial nuclei

Front 29

Which intercerebellar nuclei group is oval in shape?

Back 29

Emboliform nuclei

Front 30

Which intercerebellar nuclei group is round?

Back 30

Globose nuclei

Front 31

The intercerebellar nuclei get their inhibitory input from which cells?

Back 31

Purkinje cells

Front 32

The intercerebellar nuclei get their excitatory input from which cells?

Back 32

mossy cell branches
climbing cell branches

Front 33

Which afferent cerebellar tracts originate from the cerebral cortex?

Back 33

1. Corticopontocerebellar pathway
2. Cerebro-olivocerebellar pathway
3. Cerebroretinculocerebellar pathway

Front 34

Which afferent cerebellar tracts originate from the spinal cord?

Back 34

1. Ventral spinocerebellar tract
2. Dorsal spinocerebellar tract
3. Cuneocerebellar tract
4. Rostral spinocerebellar tract

Front 35

In addition to the cerebral cortex and spinal cord, afferent cerebellar tracts can also original from where?

Back 35

vestibular nerve
red nucleus
tectum

Front 36

Which afferent cerebellar tract has climbing fibers?

Back 36

Cerebro-olivocerebellar pathway

Front 37

Which afferent cerebellar tract(s) enter(s) the superior cerebellar peduncle?

Back 37

Ventral spinocerebellar tract

Front 38

Which afferent cerebellar tract(s) enter(s) the middle cerebellar peduncle?

Back 38

1. Corticopontocerebellar pathway
2. Cerebroretinculocerebellar pathway

Front 39

Most afferent cerebellar tracts enter which peduncle?

Back 39

inferior cerebellar peduncle

Front 40

Most afferent cerebellar tracts terminate as what type of fiber?

Back 40

mossy fibers

Front 41

The fibers of which afferent cerebellar tract(s) enter more than one peduncle?

Back 41

Cerebroretinculocerebellar pathway

Front 42

Which afferent cerebellar tract(s) pass(es) through the nucleus dorsalis?

Back 42

1. Ventral spinocerebellar tract
2. Dorsal spinocerebellar tract
3. Rostral spinocerebellar tract

Front 43

Which afferent cerebellar tract is important in joint information from lower limbs, skin, and superficial fascia?

Back 43

Ventral spinocerebellar tract

Front 44

Which afferent cerebellar tract is important in muscle information from lower limbs and trunk?

Back 44

Dorsal spinocerebellar tract

Front 45

Which afferent cerebellar tract is important in muscle information from the upper limbs and upper thorax?

Back 45

Cuneocerebellar tract

Front 46

Which afferent cerebellar tract is important in joint information from upper limbs, skin, and superficial fascia?

Back 46

Rostral spinocerebellar tract

Front 47

Afferent fibers that travel to the cerebellum from the vestibular nerve terminate on which cerebellar lobe?

Back 47

Flocculonodular lobe

Front 48

Which efferent cerebellar tract(s) decussate(s) in the superior cerebellar peduncle?

Back 48

1. Globose-emboliform-rubral pathway
2. Dentothalamic pathway

Front 49

Which efferent cerebellar tract(s) go(es) through the inferior cerebellar peduncle?

Back 49

1. Fastigial vestibular pathway
2. Fastigial reticular pathway

Front 50

Which efferent cerebellar tract(s) influence(s) motor activity on the ipsalateral side?

Back 50

1. Globose-emboliform-rubral pathway
2. Dentothalamic pathway

Front 51

Which efferent cerebellar tract(s) help(s) form the vestibulospinal tract, which helps with muscle tone?

Back 51

Fastigial vestibular pathway

Front 52

Which efferent cerebellar tract(s) help(s) form the reticulospinal tract?

Back 52

Fastigial reticular pathway

Front 53

Fibers from which efferent cerebellar tract(s) synapse in the red nucleus?

Back 53

Globose-emboliform-rubral pathway

Front 54

Which efferent cerebellar tract(s) help(s) form the rubrospinal tract?

Back 54

Globose-emboliform-rubral pathway

Front 55

Fibers from which cerebellar tract(s) decussate more than once?

Back 55

Globose-emboliform-rubral pathway

Front 56

Axons of the globose-emboliform-rubral pathway synapse where?

Back 56

contralateral red nucleus

Front 57

Axons of the dentothalamic pathway synapse where?

Back 57

contralateral ventrolateral nucleus of the thalamus

Front 58

Axons of the fastigial vestibular pathway synapse where?

Back 58

lateral vestibular nuclei

Front 59

Axons of the fastigial reticular pathway synapse where?

Back 59

reticular formation