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Glomerulus (cerebellum)
The cerebellar glomerulus is a small, intertwined mass of nerve fiber terminals in the granular layer of the cerebellar cortex. It consists of post-synaptic granule cell dendrites and pre-synaptic Golgi cell axon terminals surrounding the pre-synaptic terminals of mossy fibers. Function The cerebellar glomeruli are the first "processing station" for afferent nerve fibers entering the cerebellum. Input comes from the mossy fibers, which terminate there and synapse with the Golgi and granule cell fibers. The Golgi cells regulate the glomeruli with inhibitory signals, while information is passed on to the granule and Golgi cells from the mossy fiber. Structure A cerebellar glomerulus is about 2.5 um in diameter, and is wrapped by glial sheathing. Glomeruli are centered on the large axonal terminals of glutamatergic afferent mossy fibers. Each terminal comes into contact with dendrites from 50–60 different granule cells. The granule cells themselves each have a single or mul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cerebellar Glomerulus
The cerebellar glomerulus is a small, intertwined mass of nerve fiber Nerve terminal, terminals in the granular layer (cerebellum), granular layer of the cerebellar cortex. It consists of post-synaptic granule cell dendrites and pre-synaptic Golgi cell axon terminals surrounding the pre-synaptic terminals of mossy fiber (cerebellum), mossy fibers. Function The cerebellar glomeruli are the first "processing station" for afferent nerve fibers entering the cerebellum. Input comes from the mossy fibers, which terminate there and synapse with the Golgi and granule cell fibers. The Golgi cells regulate the glomeruli with Inhibitory neurotransmitter, inhibitory signals, while information is passed on to the granule and Golgi cells from the mossy fiber. Structure A cerebellar glomerulus is about 2.5 um in diameter, and is wrapped by glial sheathing. Glomeruli are centered on the large axonal terminals of glutamatergic afferent mossy fibers. Each terminal comes into contact with dendri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |