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Universidad Nacional“Pedro Ruiz Gallo”
Group Nº : 11
CEREBELLUM
Facultad De Medicina Humana
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located behind fourventricle and the pons
cerebellar cortex
•An external or molecular
•An internal or granular
• An intermediate layercomposed of bulky cells
(Purkinje cells)
white substance
Cerebellum
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CerebellumFunction
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The cerebellumprocesses input from
other areas of the brain,spinal cord and sensor
receptors in order toindicate the e!act for
coordinated "
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#t is associated $ith
motor activitiesinitiated in other partsof the nervous sstem"
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#t helps control
voluntar movementsprovidin% precisionand coordination"
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#t is essential for themaintenance of posture
and balance for their&inesthetic and
vestibular connections
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#t helps predict futurepositions of the
e!tremities"
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'potonia(
)isminution of the of themuscle tone
*ta!ia(
#ncordination of voluntarmovement
+i%ns of
Cerebellar+ndrome
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*lteration of thaeuilibrum and march
#ntencional tremor(
This it is produce$hen tha patients
$ant to ta&e aob-ect"
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)and./al&er0s sndrome is a con%enitalmalformation of the brain that concerns
the cerebellum and the stu1ed cavities ofliuid that surround it"
)and 2 /al&er3s
+ndrome
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- ncrease of the pressure inside these cavities!
- ncrease of the si"e of the cavities of li#uid thatsurround to the brain
- $ormation of a cyst near the internal base of thecranium!
- Partial or total absence of the cerebellar vermis!
- ncrease of si"e of the fourth ventricle
The principal features of this sndromeare(
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%rea tmen t
% he trea tmen t f
or &and y- 'a l ker s s ynd
rome cons is ts o
f trea t ing
in genera l t he
assoc ia te pro b
lems i f i t is necessar y!
% here can
ins ta l l to h im a
spec ia l p ipe (s
o ca l led s ys tem
o f der i va t ion ) ins ide
t he cran i
um for dra in
t he e xcess o f
*u id! % h is red
uces t he
pressure in tracran ia l and
he lps to con tro l
t he lump! f t he
paren ts
o f c h i ldren w i t
h &and y- 'a l ker s s yndrom
e ha ve in ten t i
ons o f
ha v ing more c
h i ldren t he y
m ig h t bene + t from t he g
ene t ic
ad v is ing!
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#t is a %enetic
disorder
The vermis ofthe cerebellum is
deformed
Therefore, the si%nsmotorboats and
messa%es from thebrain are incomplete
The 4oubert sndrome is
caused to the hereditarbein% b mutations in themultiple %enes
4oubert +ndrome
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