Cerebellum - Part 1

Question 1

Other term for Cerebellum

Answer 1

Little brain

Question 2

Situated in the posterior cranial fossa

• Ovoid in shape and constricted in the median part

Answer 2

Cerebellum

Question 3

dura mater fold dividing the

tentorial surface of cerebrum and the cerebellum

Answer 3

Tentorium cerebelli

Question 4

Folds of cerebellum

Answer 4

Folia

Question 5

Cerebellum is connected to the:
Midbrain by the ?
Pons by the ?
Medulla oblongata by the ?

Answer 5

Superior cerebellar peduncle
Middle cerebellar peduncle
Inferior cerebellar peduncle

Question 6

T or F. Cerebellum has NO DIRECT PATHWAY to the lower
motor neurons but exerts its control via the cerebral
cortex and the brainstem

Answer 6

T

Question 7

Major lobes of Cerebellum

Answer 7

Anterior
Middle/Posterior
Flocculonodular

Question 8

Superior lobe

Answer 8

Anterior

Question 9

Anterior lobe separated from the middle lobe by a wide V-shaped fissure

Answer 9

Primary fissure

Question 10

Largest lobe

Answer 10

Middle/Posterior

Question 11

2 fissures of middle lobe

Answer 11

primary fissure and uvulonodular/posterolateral fissure

Question 12

o Largest and deepest

o Divides cerebellum into upper and lower halves

Answer 12

Horizantal sulcus

Question 13

Lobe posterior to uvulonodular fissure

Answer 13

Flocculonodular

Question 14

Upper surface of the cerebellum is elevated above the

level of the hemispheres

Answer 14

Vermis

Question 15

Vermis deep depression which lodges the posterior part of

medulla oblongata

Answer 15

Vallecula cerebelli

Question 16

Subdivisions of superior vermis

Answer 16

Lingula
Lobulus centralis
Monticulus (Culmen and Declive)
Folium vermis

Question 17

Buried in the vallecular

Answer 17

Inferior vermis

Question 18

Inferior vermis is separated from the hemisphere on either side by a deep groove

Answer 18

Sulcus valleculae

Question 19

Subdivisions of inferior vermis

Answer 19

Nodule
Uvula
Pyramid
Tuber vermis

Question 20

o Separates the hemispheres below and behind

o Contains the upper part of the falx cerebri

Answer 20

Posterior cerebellar notch

Question 21

o Separates the hemispheres anteriorly
o Shallower than the posterior cerebellar notch
o Lies close to the pons and upper part of the
medulla
o Superior edge encircles the inferior colliculi and
the superior cerebellar peduncle

Answer 21

Anterior cerebellar notch

Question 22

Hemispheric counterparts:
Lingula
Lobulus Centralis
Culmen
Declive
Folium

Answer 22

None
Alae
Lobulus culminis
Lobus clivi
Superior semilunar lobules

Question 23

Folium + superior semilunar lobules

Answer 23

lobus semilunaris

Question 24

Hemispheric counterparts:
Nodule
Uvula
Pyramid
Tuber vermis

Answer 24

Flocculus
Tonsils
Biventral lobules
Inferior semilunar lobules

Question 25

Tuber + inferior semilunar lobules

Answer 25

lobus tuberus

Question 26

gross movement of the head and body

Answer 26

paleocerebellum

Question 27

fine voluntary movements

Answer 27

Neocerebellum

Question 28

Vestibular functions

Answer 28

Archicerebellum

Question 29

* Large sheets with folds in coronal or transverse plane | * Outer layer of gray matter

Answer 29

Cortex

Question 30

Inner layer of white matter

Answer 30

Medulla

Question 31

small amount of white matter

Answer 31

vermis

Question 32

large amount of white matter

Answer 32

hemispheres

Question 33

masses of gray matter embedded | in the white matter

Answer 33

Intracerebellar nuclei

Question 34

3 layers of cortex

Answer 34

Molecular Purkinje Granular

Question 35

o Branched appearance: “tree of life” o White matter of vermis o Seen when a section is made through the cerebellum parallel with the median plane by dividing the folia into right angles

Answer 35

Arbor vitae

Question 36

Outermost layer of cortex

Answer 36

Molecular layer

Question 37

2 types of neurons in molecular layer

Answer 37

stellate and basket cell

Question 38

Middle layer of cortex

Answer 38

Purkinje

Question 39

o Golgi type I neurons o Multipolar with long axons o Flask-shaped o Arranged in a single layer

Answer 39

Purkinje cells

Question 40

form synaptic connections with parallel fibers of granule cell axons

Answer 40

dendritic spines of purkinje

Question 41

Seen at the base of the Purkinje cell and terminates by synapsing with cells of one of the intracerebellar nuclei

Answer 41

axons of purkinje

Question 42

Cortex layer packed with small cells with densely staining nuclei and scanty cytoplasm

Answer 42

Granular layer

Question 43

Cells of granular layer

Answer 43

granule cells | Golgi cells

Question 44

o 4-5 dendrites – make clawlike endings and have synaptic contact with mossy fibers o Axon passes through Purkinje cell layer into molecular layer where it bifurcates at a Tjunction

Answer 44

Granule cells

Question 45

run at right angles to the dendritic processes of Purkinje cells Most make synaptic contacts with the spinous processes of the dendrites of Purkinje cells

Answer 45

Parallel fibers of granule cells

Question 46

o scattered throughout the layer o Dendrites projects to the molecular layer, and their axons terminate by splitting up into branches that synapse with the dendrites of the granule cells

Answer 46

Golgi cells