The anatomy of the nervous system, from the standpoint of development and function . amifications of the Purkinje cells and the branches of axons from the granule THE CEREBELLUM 209 cells (Fig. 150). It contains a relatively small number of stellate neurons, themore superficial of which possess short axons and belong to Golgis Type more deeply situated have a highly specialized form and arc known asbasket cells. From each of these there arises, in addition to several stout brandl-ing dendrites, a single characteristic axon, which runs through the molecularlayer in a plane at right ang
The anatomy of the nervous system, from the standpoint of development and function . amifications of the Purkinje cells and the branches of axons from the granule THE CEREBELLUM 209 cells (Fig. 150). It contains a relatively small number of stellate neurons, themore superficial of which possess short axons and belong to Golgis Type more deeply situated have a highly specialized form and arc known asbasket cells. From each of these there arises, in addition to several stout brandl-ing dendrites, a single characteristic axon, which runs through the molecularlayer in a plane at right angles to the long axis of the folium (Fig. 151). Theseaxons are at first very fine, but soon become coarse and irregular, giving offnumerous collaterals which are directed away from the surface of the collaterals and the terminal branches of the axons run toward the Purkinjecells, about which their terminal arborizations form basket-like networks (Fig. 29). Purkinje <Dentate nucleus Brachium conjunc- tivum Brachium pontis Restiform body Climbing fibersMossy fibers -. Basket cell Granule cell Fig. 152.—Diagram to illustrate the probable lines of conduction through the cerebellum. Nerve-fibers.—The axons of the Purkinje cells form a considerable volumeof fibers directed away from the cortex. There are also two kinds of afferentfibers which enter the cortex from the white center, and are known as climbingand mossy fibers respectively. The latter are very coarse and give off numerousbranches ending within the granular layer. The terminal branches are providedwith characteristic moss-like appendages. These mossy tufts are intimatelyrelated to the claw-like dendritic ramifications of the granule cells (Fig. 152).The climbing fibers, somewhat finer than those of the preceding group, passthrough the molecular layer and become associated with the dendrites of thePurkinje cells in the manner of a climbing vine. Branching repeatedly, they 2IO THE NERVOUS SYSTEM follow cl
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectnervoussystem, bookye
