3C. Cerebellum Flashcards
The midline strip on the surface of the cerebellum is the:
Vermis (hemispheres)
The gray matter of the cerebellum:
is similar to the overall arrangement of gray and white matter as seen in the brain
Deep cerebellar nuclei send axons to the:
UMN nuclei in the brainstem
__________ is the term for surface ridges of the cerebellum
Folia
______ is the term for the grooves in the cerebellum
Sulci
What refers to the deeper white matter of the cerebellum?
Arbor Vitae
The primary fissure separates the:
Rostral and Caudal lobes
The Caudalateral fissure separates:
Caudal and Flocculonodular
The spinocerebellum is the same as:
Paleocerebellum (Rostral lobe)
The vestibulocerebellum is the same as:
Archicerebellum (Flocculonodular)
The Pontocerebellum is the same as:
Neocerebellum (caudal lobe)
Which term identifies the superficial layer of the cerebellar cortex?
Molecular
From superficial to deep, the layers of the cerebellar cortex are:
molecular, Purkinje, granular
Phylogenetically, which part of the cerebellum is the first to develop?
Flocculonodular lobe (Archicerebellum)
Which group of fibers represents extrapyramidal motor information entering the cerebellum?
Climbing
Where do axons of Purkinje fibers synapse?
Deep cerebellar nuclei
information that is being received or information that is being sent to some place
Afferent
Cerebellar Afferents:
For Proprioception, it comes by way of:
Spinocerebellar/Vestibulocerebellar
Cerebellar Afferents:
The Extrapyramidal influences comes by way of the:
Olivocerebellar Tract
Cerebellar Afferents:
The pyramidal motor influence comes by way of the:
Pontocerebellar tract
Efferent information is ________________
sending
Middle and Caudal peduncles are _________ in nature with the fibers contained there
afferent
The ___________________ is carrying the efferent information from the cerebellum to the brain stem
Rostral Cerebellar Peduncle
Cerebellar Efferent:
Purkinje cells —> deep cerebellar nuclei —> UMN nuclei in the brainstem (fibers travel through the ___________ cerebellar peduncle to reach brainstem nuclei)
Rostral
Cerebellar disease has an ________________ function on the body
ipsilateral
In an exam, when looking for cerebellar disease, they are going to be problems with the:
- Rate
- Range
- Direction
- Force of movement
the inability of patients to execute complex movements in which the judgment of distance is impaired and expressed as inaccurate control of the range and direction of movement
Dysmetria
Cerebellar Disease Signs:
- problems with Rate, Range, Direction, and Force of movement
- Broad-based stance
- Lack of coordination
- Nystagmus, strabismus, head tilt due to Flocculonodular lobe (vestibular) connections
