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59 Cards in this Set
- Front
- Back
List the lobes of the cerebellum.
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Anterior lobe
Middle (posterior) lobe Flocculonodular lobe |
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Gray-matter and white-matter cortex: Which is internal and which is external?
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Gray-matter cortex is external and white-matter cortex is internal.
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What are the 3 layers of cerebellar cortex?
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1. Molecular layer (external)
2. Purkinje cell layer 3. Granular layer (internal) |
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Stellate cell
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inhibitory interneuron found in molecular layer of cerebellar cortex
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Basket cell
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inhibitory interneuron found in molecular layer of cerebellar cortex
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Which are the only cells that leave the cerebellar cortex?
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Purkinje cells
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In which cortical layer are the cell bodies of Purkinje cells located?
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Purkinje cell layer
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In which cortical layer are the dendrites of Purkinje cells located?
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molecular layer
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Are the axons of Purkinje cells myelinated or unmyelinated?
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myelinated
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The dendritic spines of Purkinje cells make excitatory synapses with what type of granular cell?
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mossy cells
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Which type of cerebellar granular layer cell is an inhibitory interneuron?
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Golgi cells
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Which type of granular layer cell provides a negative feedback loop?
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Golgi cells
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Afferent fibers of the arbor vitae enter through which peduncle(s)?
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inferior peduncle
middle peduncle |
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Efferent fibers of the arbor vitae leave through which peduncle(s)?
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superior peduncle
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The efferent fibers of the arbor vitae are derived from what cell type?
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Purkinje cells
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Are afferent fibers excitatory or inhibitory to Purkinje cells?
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excitatory
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Which fibers are excitatory to Purkinje cells?
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mossy fibers
climbing fibers |
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Which fibers compose the largest afferent input to Purkinje cells?
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mossy fibers
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Climbing fibers come from which nucleus?
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contralateral inferior olivary nucleus
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Climbing fibers branch into how many terminal branches?
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10 to 15 terminal branches
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Each Purkinje cell gets input from how many climbing cell terminal branches?
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only one branch
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Are Purkinje axons afferent or efferent?
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efferent
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Climbing fiber terminal branches interact with how many Purkinje cells?
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> 1
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List the types of intercerebellar nuclei.
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Dentate nuclei
Emboliform nuclei Globose nuclei Fastigial nuclei |
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Which are the largest intercerebellar nuclei type?
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Dentate nuclei
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Output from the lateral portion of cerebellar cortex goes to which intercerebellar nuclei?
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Dentate nuclei
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Output from intermediate cerebellar cortical areas goes to which intercerebellar nuclei?
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Emboliform nuclei
Globose nuclei |
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Vermis output goes to which intercerebellar nuclei?
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Fastigial nuclei
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Which intercerebellar nuclei group is oval in shape?
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Emboliform nuclei
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Which intercerebellar nuclei group is round?
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Globose nuclei
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The intercerebellar nuclei get their inhibitory input from which cells?
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Purkinje cells
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The intercerebellar nuclei get their excitatory input from which cells?
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mossy cell branches
climbing cell branches |
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Which afferent cerebellar tracts originate from the cerebral cortex?
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1. Corticopontocerebellar pathway
2. Cerebro-olivocerebellar pathway 3. Cerebroretinculocerebellar pathway |
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Which afferent cerebellar tracts originate from the spinal cord?
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1. Ventral spinocerebellar tract
2. Dorsal spinocerebellar tract 3. Cuneocerebellar tract 4. Rostral spinocerebellar tract |
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In addition to the cerebral cortex and spinal cord, afferent cerebellar tracts can also original from where?
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vestibular nerve
red nucleus tectum |
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Which afferent cerebellar tract has climbing fibers?
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Cerebro-olivocerebellar pathway
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Which afferent cerebellar tract(s) enter(s) the superior cerebellar peduncle?
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Ventral spinocerebellar tract
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Which afferent cerebellar tract(s) enter(s) the middle cerebellar peduncle?
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1. Corticopontocerebellar pathway
2. Cerebroretinculocerebellar pathway |
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Most afferent cerebellar tracts enter which peduncle?
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inferior cerebellar peduncle
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Most afferent cerebellar tracts terminate as what type of fiber?
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mossy fibers
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The fibers of which afferent cerebellar tract(s) enter more than one peduncle?
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Cerebroretinculocerebellar pathway
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Which afferent cerebellar tract(s) pass(es) through the nucleus dorsalis?
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1. Ventral spinocerebellar tract
2. Dorsal spinocerebellar tract 3. Rostral spinocerebellar tract |
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Which afferent cerebellar tract is important in joint information from lower limbs, skin, and superficial fascia?
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Ventral spinocerebellar tract
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Which afferent cerebellar tract is important in muscle information from lower limbs and trunk?
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Dorsal spinocerebellar tract
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Which afferent cerebellar tract is important in muscle information from the upper limbs and upper thorax?
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Cuneocerebellar tract
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Which afferent cerebellar tract is important in joint information from upper limbs, skin, and superficial fascia?
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Rostral spinocerebellar tract
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Afferent fibers that travel to the cerebellum from the vestibular nerve terminate on which cerebellar lobe?
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Flocculonodular lobe
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Which efferent cerebellar tract(s) decussate(s) in the superior cerebellar peduncle?
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1. Globose-emboliform-rubral pathway
2. Dentothalamic pathway |
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Which efferent cerebellar tract(s) go(es) through the inferior cerebellar peduncle?
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1. Fastigial vestibular pathway
2. Fastigial reticular pathway |
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Which efferent cerebellar tract(s) influence(s) motor activity on the ipsalateral side?
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1. Globose-emboliform-rubral pathway
2. Dentothalamic pathway |
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Which efferent cerebellar tract(s) help(s) form the vestibulospinal tract, which helps with muscle tone?
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Fastigial vestibular pathway
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Which efferent cerebellar tract(s) help(s) form the reticulospinal tract?
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Fastigial reticular pathway
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Fibers from which efferent cerebellar tract(s) synapse in the red nucleus?
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Globose-emboliform-rubral pathway
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Which efferent cerebellar tract(s) help(s) form the rubrospinal tract?
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Globose-emboliform-rubral pathway
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Fibers from which cerebellar tract(s) decussate more than once?
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Globose-emboliform-rubral pathway
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Axons of the globose-emboliform-rubral pathway synapse where?
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contralateral red nucleus
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Axons of the dentothalamic pathway synapse where?
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contralateral ventrolateral nucleus of the thalamus
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Axons of the fastigial vestibular pathway synapse where?
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lateral vestibular nuclei
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Axons of the fastigial reticular pathway synapse where?
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reticular formation
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