Or also called:
- Floculonodular lobe
- Make changes in the eyes and trunk in response to movement of the head
- Efferents to: vestibular nucleus
- Synapse fastigial nucleuos (Deep cerebellar)
The lobe of the cerebellum in charge off influencing LMN via thecorticospinal tract fro volluntary movements with sequence and precison is __________ which by eferent synapse in ________
Pontocerebellum or Lateral hemispheres
Before entering the cortex synapse in the:
- ventro anterior
nucleus of the thalamus
THE INTERMEDIATE HEMISPHERE MODULATE LMN BY USING _______;________ TRACTS
The layers of the cortex pf the cerebellum are composed of ?
- Molecular layer
- Purkinje layer
- Granule cell layer
Fibers that enter the cerebellum most commonly use _______,________ and fibers that exit the cerebellum most commonly exit through _______.
TOPOGRAPHIC ARRAGEMENT THE CEREBELLUM
Vermis: Axial and proximal trunk musculature
Interhemipshere: Distal musculature
Latral hemisphere: Coordination and planning
Flocculonodular: balance and eye movements
Principal inputs for the cerebellum lobes
Vermis-intermediate lobes: spinal cord
Lateral: cerebral cortex, inferior olivary nucleus
Flocculonodular: vestibular nuclei
Which type of fibers enter to the cerebellum ?
Mossy fibers(active granule)
Climbing fibers(active purkinje directly) (olive)
Purkinje cells are _______ and use ________, while granule cells are ______ and use _________.
Purkinje are inhibitory using GABA
Granule cells are excitatory using glutamate
A patient with ataxic gait and history of chronic alcoholic abuse most commonly has ?
A lesion in the anterior vermis
Posterior vermis is commonly lesioned by ?
Which signs suggest us of a cerebellum hemisphere lesion ?
- Intension tremor
- Gaze dysfunction
- Scanning Dysarthria
How we differentiate a pacient who has suffered a lesion at the dorsal columns from one that suffered a lesion at the cerebellum ?
Dorsal column lesion produce:
Romberg sign ( patient sway with eyes closed)
Cerebellum lesion (vermis):
Patient sway with eyes open