Cerebellum: A Comprehensive Overview of Structure - Edubirdie

University:
Western Sydney University
Course:
MEDI 2003 | Clinical Sciences 2
Academic year:

2024
Views:

164

Pages:

4
Author:

Mariam A. A.

Cerebellum Location: Posterior cranial fossa Structure: Hemispheres Vermis Lobes: anterior, posterior, flocculonodular Nuclei: dentate, interposed, fastigial Functions: Balance Equilibrium Coordination of movement Fine motor control Role in motor learning Receives information about motor plans Ensures smooth, coordinated movements Cerebellum Cerebellar cortex: Gray matter Contains cell bodies and dendrites Organized into layers: molecular, Purkinje, granular Neurons: Stellate cells Basket cells Purkinje cells Granular cells Golgi cells Neurotransmitters: Glutamate GABA Glycine Functions: Motor learning Coordination Balance Equilibrium Neural sharpening Cerebellum Functions: Everything to do with coordination should be cerebellum Ipsilateral ataxia Intention tremor Dysmetria Adiadochokinesia Dysarthria Connections: Corticobulbar tract Rubrospinal tract Spinocerebellar tracts Olivocerebellar tracts Vestibulocerebellar tracts Nuclei: Dentate Interposed Fastigial Cerebellar peduncles: Superior cerebellar peduncle Middle cerebellar peduncle Inferior cerebellar peduncle Cerebellum: Connects with: Vestibulospinal tract Cerebropontocerebellar tract Purkinje cells: Send information to: Vestibular nuclei Deep cerebellar nuclei Vestibular nuclei: Connect with: Vestibulospinal tract Medial longitudinal fasciculus Extraocular motor nuclei

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