Human anatomy, including structure and development and practical considerations . f. T. G. Lee. 1092 HUMAN ANATOMY. several richly branched tlciulrilcs pass in various tlircctioiis, hut larj^cly into themolecular layer. VUv axonc is most ilistinctive, as very soon after leaving the cell itsplits up into an arbt^rization of unusual extent and complexity, which, however, isconfined to the granular layer. These cells, therefore, belong to those of type II(page 99S). Since by their processes they are brought into intimate relation witha number of other neurones, the elements under consideration ar
Human anatomy, including structure and development and practical considerations . f. T. G. Lee. 1092 HUMAN ANATOMY. several richly branched tlciulrilcs pass in various tlircctioiis, hut larj^cly into themolecular layer. VUv axonc is most ilistinctive, as very soon after leaving the cell itsplits up into an arbt^rization of unusual extent and complexity, which, however, isconfined to the granular layer. These cells, therefore, belong to those of type II(page 99S). Since by their processes they are brought into intimate relation witha number of other neurones, the elements under consideration are probal)ly of thenature of association cells. The nerve-fibres i-ncountered within the cerebellar cortex (Fig. 945) comprisethree chief \arieties. (i ) The first of these includes the axones of the cells of Purkinjewhich contribute an inconsiderable portion of the fibres passing from the cerebellarcortex to other j)arts, either of the cerebellum itself or of the cerebrum and brain-stem.(2) The moss-fibres destined especially for the granular layer, which upon enter- FiG. Molecular layer laver White mailer Moss-fibres iiije cells ^1-r Diagrammatic reconstruction of part of folium, illustrating relations of nerve-cells and fibres of cerebellar cor-tex ; folium is shown cut traiis\ersely and longitudinally; «, Purkinje cells; A, granule cells; r, small cortical cells;if, basket cells ; er of l)ranches that bear, either at the points ofdivision or at their ends, thickenings from which bundles of short diverging twigs aregiven ofl. By this arrangement each moss-fibre ends in relation with a large numberof granule cells. (3) The climbing-fibres, so named (Cajal) on account of theirtortuous and vine-like course, ascend through the granular to the molecular layer,to which they are chiefly if not exclusively distributed, where they entwine andcling to the primary and secondarv dendritic processes of the Purkinje fibres encountered within the granule la
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