27/28 cerebellum

Question 1

What occupies the POSTERIOR CRANIAL FOSSA and is attached to the brainstem by three pairs of white matter stalks called peduncles

Answer 1

CEREBELLUM

Question 2

three pairs of white matter stalks =

Answer 2

PEDUNCLES

Question 3

the cerebellym is dividied longitudinally into what?

Answer 3

VERMIS
and TWO Lateral Hemispheres

Question 4

How many lobes does the cerebellum have

Answer 4

3
Anterior
Posterior
Flocculonodular

Question 5

Flocculondoular Lobe has special names for vermis and hemispheres

Answer 5

Vermis = NODULUS
Hemispheres = FLOCCULUS

Question 6

Cerebellum Nuclei (Medial to Lateral)
F, G , D

Answer 6

Fastigial Nucleus, Globus Emboliform, Dentate Nucleus

Question 7

What modulates activity of deep nuclei

Answer 7

Purkinje Cells

Question 8

cerebellum pathway

fibers from the spinal cord enter thr brainstem via what?

Answer 8

Peduncle and synapses in both the cerebellar cortex and deep nuclei

Question 9

Functional divisions of cerebellum:

Contains the fastigial nucleus
responsible for trunk/postural adjustements

Answer 9

VERMIS

Question 10

Functional divisions of cerebellum:

contains the globus emboliform, which helps limbs adjust while movements are in progress

Answer 10

Medial HEMISPHERE

Question 11

Functional divisions of cerebellum:

contains the dentate nucleus, responsible for planning learned skills of the distal limbs, especially hands

Answer 11

Lateral Hemisphere

Question 12

Functional divisions of cerebellum:

contains the vestibular nucleus
responsible for equilibrium and control of eye movements

Answer 12

Flocculondodular Lobe

Question 13

Sensory info is projected onto the cerebellum in a specific pattern:

Answer 13

Flocculonodular Lobe - vestibular
Vermis - trunk, head, vestibular
Hemisphere - limb

Question 14

the cerebellum influences motor activity by altering the activity of

Answer 14

UMN

Question 15

Unlike the cerebral cortex and basal ganglia, the cerebellum is linked to what side of the body

Answer 15

IPSILATERAL

Question 16

Information comes into the cerebellum via what

Answer 16

PEDNUCLES

Question 17

Where does cerebellar info SYNAPSE

Answer 17

Cerebellar Cortex and Deep Nucleus

Question 18

WHICH PEDUNCLE

travels from cerebellum to contralateral midbrain (red nucleus) & thalamus (VL nucleus) to the cerebral cortex

S

Answer 18

SUPERIOR

how the cerebellum talks to the cerebral cortex

Question 19

Which PEDUNCLE

travels from the pontine gray nuclei to the contralateral cerebellum and also relays from the cerebral cortex to the contralateral cerebellum

Answer 19

MIDDLE PEDUNCLE

how the cerebral cortex talks to the cerebellum

Question 20

Which Peduncle

travels to and from the medulla and the spinal cord for non-conscious proprioception

Answer 20

INFERIOR Peduncle

Question 21

Which pednucles are CROSSED

Answer 21

Superior and MIddle

Question 22

Cerebellar tonsillar herniation compresses the brainstem causing dysfunction of what two centers

Answer 22

Cardio and Resp

Question 23

What type of herniation goes through FORAMEN MAGNUM

Answer 23

Cerebellar TONSILLAR

Question 24

What hernination occurs through TENTORIAL notch causing compression of brain stem and ipsilateral 3rd nerve

Answer 24

UNCAL Herniation

Question 25

Name the nerniation

MOST COMMON
Cingulate gyrus pushes laterally underneath falx cerebri

traps ACA,

Answer 25

SUBFALCINE

Question 26

lesions of these cause a loss of balance when WALKING/STANDING

Answer 26

VERMIS
Flocculonodular Lobe = loss of balance and eye abnormalities like nystagums

Question 27

lesions here cause UNCOORDINATED movements of the IPSILATERAL Limbs

Answer 27

Cerebellar Hemisphere

Question 28

TRUNCAL ATAXIA is associated to

Answer 28

VERMIS

Question 29

lesions of ANTERIOR LOBE primarily affects what limbs

alcoholoics due to thiamine deficiency - causes hypotonia of lower limb

Answer 29

LOWER LIMBS

Question 30

EYE movment abnormalities are associated with

Answer 30

FLOCCULONDOULAR LOBE LESIONS

Question 31

damage to what portion of the hemisphere effects complex, skilled hand movements that are developed through repeated practice

Answer 31

LATERAL portions

Question 32

agenesis of the cerebellar vermis with cystic enlargement of the 4th ventricle filling
the posterior fossa; a/w non-communicating hydrocephalus

Answer 32

dandy walker malformation

Question 33

hereditary ataxia

AR disease with degeneration of spinocerebellar tracts, corticospinal tracts, dorsal columns, DRG, and sensory fibers in the peripheral nerves

Answer 33

friedreich ataxia