Posterior Lobe Of The Cerebellum
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Posterior Lobe Of The Cerebellum
The posterior lobe of cerebellum or neocerebellum is one of the lobes of cerebellum, lobes of the cerebellum, below the Primary fissure of cerebellum, primary fissure. The posterior lobe is much larger than Anterior lobe of cerebellum, anterior lobe. The anterior lobe is separated from the posterior lobe by the primary fissure, and the posterolateral fissure separates flocculonodular lobe from the posterior lobe. Sometimes, the posterior lobe of cerebellum is called the neocerebellum since phylogenetically it is the newest part of the cerebellum. It plays an important role in fine motor coordination, specifically in the inhibition of involuntary movement via inhibitory neurotransmitters, especially GABA. The posterior lobe receives input mainly from the brainstem (i.e., reticular formation and inferior olivary nucleus) and cerebral cortex. It also has activation linked to happiness. Additional images File:Posterior lobe of cerebellum -- animation.gif, Animation. Posterior lobe s ...
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Primary Fissure Of Cerebellum
The monticulus of the cerebellum is divided by the primary fissure (or preclival fissure) into an anterior, raised part, the culmen or summit, and a posterior sloped part, the clivus; the quadrangular lobule is similarly divided. Additional images File:Primary fissure of cerebellum -- animation.gif, Animation. Primary fissure shown in red. File:Primary fissure of cerebellum --- animation.gif, Close up animation. Primary fissure shown in red. File:Cerebellar lobes by Sanjoy Sanyal.webm, Dissection video (1 min 20 s). Demonstrating the three cerebellar lobes. "V-shaped fissure" is the primary fissure. See also * Anatomy of the cerebellum The anatomy of the cerebellum can be viewed at three levels. At the level of gross anatomy, the cerebellum consists of a tightly folded and crumpled layer of Cerebellar cortex, cortex, with white matter underneath, several deep nuclei embedded i ... References External links * https://web.archive.org/web/20080614064333/http://www.ib ...
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