ANAT 1 Cerebellum Flashcards
Cerebellum functions (3 main functions)
Organization of gray matter
what layers?
Type of cell or fiver present?
Types of neurons in the gray matter
(5)
Only excitatory?
P- type of cell? from? function? NT? many?
G- size? NT?
S- synapse with? function? shape?
G- function? NT? shape?
B- synapse with? function? NT?
afferent fibers (neurons in gray matter)
2
C- from? synapse on? function? convey what info?
M- From? syanpse with? convey?
both- also send branches to?
excitatory or inhibitiory?
functional divisions of the cerebellum
what division?
functional name for what?
receives info from?
output to?
also receive info from?
functions to influence? (2) in relation to?
functional divisions of the cerebellum
name of division?
functional name for what region?
what type of info? feedback from? (2)
fucntions to do what? via?
functional divisions
what division? aka?
input form? via?
functions in? (3)
big picture
afferents enter as?
into what areas?
this get sent to what? via?
then off to?
draw?
afferent fibers pathways entering the cerebellum
what areas via what system?
(3)
v- (2)
s-(3)
C- (3)
out of these 8 one is unique. which one? why is it unique?
afferent fiber pathways
what type of info?
spinal cord two major tracts?
for both: axons carry what info from?
1st order neuron enters via? (synapse located where) and ascends in?
2nd order neuron ascend in?
they enter cerebellum via?
afferent spinal pathways (picture)
what makes up the inferior cerebellar peduncle? what pathways go through this?
these pathways are ipsi or contra?
the third spinal tract? what is unique? ipsi or contra?
for anterior just know it crosses twice making it ipsi even though it crosses
what are these?
what happens here?
top black bar- major what for what?
what also runs here?
middle black bar- size? what fibers? from where? goes where?
lower black bar- pathways from?
functional regions
(3) and what is their functions?
deep nuclei (4)
location?
efferent fibers
efferent fibers
cerebellar lesions
unilateral lesions affect what side???
common to all lesions of cerebellum?
what is this? (4)
gait?
dont need to follow this stuff circled
lesion of vestibulocerebellum
connections between?
3 main symptoms?
nystagmus- vision condition in which the eyes make repetitive, uncontrolled movements
lesions of spinocerebellum
connections between?
main symptoms?
(2)
midline ataxia
ataxic syndromes caused by?
what are the two main symptoms? (further broken down to)
t- (2)
g- (1)
lesions of cerebrocerebellum
(4)
d-
a-
d-
l- (3)
appendicular ataxia
dysfunction with?
findings?
(4)
cerebellar vs sensory ataxia
cerebellar- (3) normal?
sensory ataxia- (2)
exam of cerebellum
vestibulocerebellum and spinocerebellum?
(3)
cerebrocerebellum?
(6) just think about it
