Cerebellum

Question 1

Arbor vitae

Answer 1

“tree shaped” branching white matter of the cerebellum

Question 2

Folia

Answer 2

“folded” gray matter at the periphery of the cerebellum. Increases the surface area of the gray matter

Question 3

Deep nuclei

Answer 3

collections of cell bodies buried deep within the white matter of the aror vitae

Question 4

Anterior lobe

Answer 4

Most ventral lobe of the cerebellum. roughly, receives the ascending senory spiocerebellar tracts

Question 5

Posterior lobe

Answer 5

most dorsal lobe of the cerebellum. Roughly, receives motor information from the cerebral cortex, via the corticopontocerebellar pathway

Question 6

Floccuulonodular lobe

Answer 6

most oddly shaped lobe of the cerebellum. Roughly, receives equilibrium information from the vestibulococerebellar pathway

Question 7

vermis

Answer 7

central area of the cerebellum, connecting the two cerebellar hemispheres and site of falx cerebelli splitting the two hemispheres

Question 8

cerebellar (S, M, I) peduncles

Answer 8

white matter tracts connecting the cerebellum to the midbrain, pons, and medulla oblongata, respectively

Question 9

tentorium cerebelli

Answer 9

reflected dural fold runninghorizontally within the transverse fissure and separating the cerebrum superiorly from the cerebellum inferiorly

Question 10

falx cerebelli

Answer 10

reflected dural fold running vertically, inferior to tenorium cerebelli, separating the 2 hemispheres of the cerebellum

Question 11

spino, reticulo, and olivocerebellar pathways

Answer 11

Ascending sensory pathways bringing afferent ipsilateral proprioceptive info from skeltal muscles to the cerebellum

Question 12

reticulo, reubo, vestibulospinal pathways

Answer 12

efferent motor pathways brining motor information to the skeletal muscles to coordinate posture and balance. Cerebellar neurons join these pathways to deliver motor information from the cerebellum

Question 13

cerebellovestibular and median longitudinal fasiculus

Answer 13

Efferent cerebellar pathways to take information regarding posture and balance to the vestibular and visual areas

Question 14

Corticopontocerebellar tract

Answer 14

Descending motor information from the cerebral cortex, headed to the skeletal muscles, but diverted into the cerebellum via the pontine nuclei of the middle cerebellar peduncle. Lets the cerebellum evaluate and modify motor plans from the cerebral cortex

Question 15

Dento(rubro) thalamic pathway

Answer 15

Ascending pathway from the cerebellum to the core, used by cerebellum to deliver an “edited” mo0tor plan back to the cortex