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Anatomy Mini-Tutorial: The Cerebellum

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MgujSMP.png

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\({\bf{Overview:}}\) > divided into 2 cerebellar hemispheres by the vermis (made of cortex) > each hemisphere divided into anterior/posterior lobes divided by primary fissure - controls limbs/trunk > contains folds (folia) > also contains flocculnodular lobes anterior + inferior to cerebellar hemisphere - controls balance and eye movement |dw:1540003125771:dw|

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\({\bf{Main~Functions:}}\) - adjusts posture/equilibrium via muscle cells - refining movements - storing memories regarding movements via cerebral cortex, basal nuclei, brainstem \({\bf{Cerebellar~Cortex:}}\) - made of highly branched Purkinje cells, projects into cerebellar nuclei > neurons transmitting sensory info synapse with the Purkinje cells > Purkinje cells transmit motor information to cerebrum/brainstem - arbor vitae: branching white matter of the cerebellar cortex \({\bf{Peduncles:}}\) - superior: link cerebellum + mesencephalon/diancephalon/cerebrum - middle: link cerebellum + sensorimotor neurons in pons - inferior: link cerebellum + medulla oblongata, carry cerebellar tracts from spinal cord |dw:1540003789741:dw|

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Adapted from Human Anatomy, Martini, et. al. 9th edition

3 weeks ago
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