. Compendium of histology. Histology. 228 TWENTY-SECOND LECTURE. The former, I to mm. thick, has crowded and stratified granules, that is nucleus like structures or, more properly said, small cells mm. They remind one of the sub- sequently to be described elements of the retina of the eye, and, like the latter, give off the finest filaments from both poles (Fig. 189, below). Whether these granules of the cerebellum are of a nervous or connective-tissue nature is still undecided. The gray stratum contains a simple layer of large remark- able ganglion cells. Purkinje described them
. Compendium of histology. Histology. 228 TWENTY-SECOND LECTURE. The former, I to mm. thick, has crowded and stratified granules, that is nucleus like structures or, more properly said, small cells mm. They remind one of the sub- sequently to be described elements of the retina of the eye, and, like the latter, give off the finest filaments from both poles (Fig. 189, below). Whether these granules of the cerebellum are of a nervous or connective-tissue nature is still undecided. The gray stratum contains a simple layer of large remark- able ganglion cells. Purkinje described them forty years ago. They send downwards an axis- cylinder process id), and up- wards or outwards a system of antler-like ramified proto- plasma processes (c). The finest terminal branches of the latter (Hadlich) are said to bend over (a) in a loop-like manner at the surface, and return to the rust-colored layer. Connective-tissue support- ing fibres (r) form a special boundary layer at the surface. The pedunculi cerebri re- ceive ascending masses of fibres from the medulla ob- longata and cerebellum ; they also receive others which de- scend, from the cerebrum to the medulla oblongata. Their Fig. 189.âThe cortex of the human cerebellum in perpendicular section. Two Purkinje's cells, SlipeiTOr TOUnded DOl'tlOn beneath them a portion of the granular layer ; d, _ the lower, upoer process of the former. At (cap) is Separated from tile r, supporting fibres ; at a, the loop-shaped V * ' *â bends of the finest cell processes; c, tangential inferior Semilunar (basis) pOr- thmnest nerve fibres. ' A tion by a dark substance. Black pigmented multipolar ganglion cells occur here. The so-called cerebral ganglia consist of the corpora. -C. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Frey, Heinrich, 1822-1890; Cu
Size: 1132px × 2207px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, bookpublishernewyo, bookyear1876
