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Перевод: ganglion

[существительное]
нервный узел; ганглий [анат.] ; центр

Тезаурус:

1. In most species there are at least three distinct classes of ganglion cells in the retina that conduct information through to the visual cortex in physiologically distinguishable streams.
2. Some of them are potent ganglion blocking agents and were introduced into clinical medicine, but they had grave disadvantages.
3. And to integrate this bombardment of sense stimulations and to organize responses to them, the ganglion of this segment (often plus several additional ones) becomes greatly enlarged to form the brain.
4. Four microinjections of WGA-HRP were made in the left occipital operculum of two rhesus monkeys ( Macaca multatta) to mark and surround the foveal and perifoveal representation, and the sectioned brains and flat-mounted retinae were processed to reveal the injection sites and the loci of labelled retinal ganglion cells that projected topographically to those sites (Fig. 1).
5. Our measurements give values of 1.83x10 -3 mm 2 per ganglion cell (rhesus R54) and 2.78x10 -3 mm 2 per ganglion cell (rhesus R151) in the central few degrees of retina, and 5.57x10 -4 mm 2 per ganglion cell (R54) and 4.69x10 -4 mm 2 per ganglion cell (R151) in the remaining region (Table 1).
6. Because the eccentric labelled spots in the retinae were situated at least 6.5 degrees away from the fovea, all ganglion cells projecting to the enclosed cortical region were included.
7. We can now begin to make some sense of the differences between the three classes of ganglion cells.
8. Since 1966 our knowledge of ganglion cell classes has increased in leaps and bounds (Stone 1983).
9. The number of ganglion cells was estimated by representing their distribution as mathematical functions and integrating numerically over the polygonal region demarcated by the four labelled sites, and over the remaining area of the retina.
10. Does this simply reflect an equivalently uneven distribution of ganglion cells in the retina, or is the cortical representation of the fovea preferentially expanded r8-;13 ?
11. Enroth-Cugell and Robson (1966) started the ball rolling by showing that, in cats, there are two functional classes of ganglion (relay) cells in the retina.
12. Chromatic specificity of centre and surround inputs would require that the ganglion cell's opposing inputs are not always drawn from cones that are nearest neighbours.