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Cerebellum
Cerebellum Flashcards
35
Veterinary Medicine
Professional
04/17/2006

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Term
the function of the cerebellum
Definition
monitor both sensory and motor, combines with vestibular-creates smooth and coordinated movements
Term
the development of the cerebellum
Definition
in the rostral portion of the metenceph, rhombic lip forms the cerebellum
Term
the worm like band along the midline
Definition
vermis
Term
the ridge of tissue on the cerebellum
Definition
folia
Term
the grooves on the surface
Definition
sulci
Term
where is the gray matter located
Definition
on the surface (cortical), embedded in the white (subcortical)
Term
the white matter deep to the surface that is named for the orientation of white matter
Definition
arber vetae
Term
the lobe at the front of the cerebellum
Definition
the rostral lobe
Term
the lobes on the dorsal side
Definition
the caudal lobe
Term
the lob along the ventral side, has tufts of grey matter on each lateral side
Definition
floculonodular lobe
Term
the very deep groove that separates the rostral lobe from the caudal lobe
Definition
primary fissure
Term
the very deep groove that seperates floculonodular lobe from the caudal
Definition
caudolateral fissure
Term
the bilateral subcortical nuclei
Definition
cerebellar nuclei
Term
the cerebellar nuclei closest to the midline
Definition
fastigial nuclei
Term
the cerebellar nuclei in the middle
Definition
interpositus nuclei
Term
the cerebellar nuclei that is farthest from the midline
Definition
the dentate nuclei
Term
the oldest developmental stage
Definition
archicerebellum (floculonodular lobe)
Term
the middle developmental stage
Definition
paleocerebellum (rostral lobe)
Term
the youngest developmental stage
Definition
Neocerebellum (caudal lobe)
Term
the layer of the cerebellum which synapses and processes
Definition
molecular layer
Term
the layer with operative cells, monitors the info, lined up through the layer
Definition
purkinje layer
Term
the inner most layer
Definition
the granular layer
Term
the fiber type from the olivary complex the the molecular layer to purkinje dentrites, the extrapyramydal relay system
Definition
the climbing fibers
Term
fibers from brainstem and cord to the granule cells, from motor fibers of the paramydal or SC or vestibular system
Definition
Mossy fibers
Term
the fibers from the granule cells to the purkinje cells, activates purkinje and sends into back to deep cerebellar nuclei
Definition
parallel fibers
Term
where the proprioceptive info enters
Definition
spinocerebellar/vestibulocerebellar tracts
Term
where the extraparamydal motor system feeds, forms climbing fibers in the cerebellum
Definition
the olivocerebellar tract
Term
where the pyramidal motor system enters, contributes to the mossy fibers
Definition
the pontocerebellar tract
Term
one of the deep cerebellar nuclei that go to the vestibular nuclei
Definition
fastigial nucleus
Term
the efferent fibers that go to the red nucleus and form the rubrospinal tracts
Definition
interpositus nucleus
Term
the numerous projections that go to the red nucleus, thalamus, and basal ganglia
Definition
dentate nucleus
Term
archicerebellum
Definition
the vestibulocerebellum (lesion causes disturbance in balance/equilibrium)
Term
paleocerebellum
Definition
spinocerebellum (reglate posture, tone)
Term
neocerebellum
Definition
pontocerebellum (regulate highly skilled movement)
Term
signs related to cerebellar lesions
Definition
inability to regulate movement-dismetria, may overshoot stride, nystagmus
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