| Cell type (class) | Nomenclature (Acronym) |
Definition | Relation of giant ganglion cell |
| Annotation | Reference |
Collator |
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| retinal ganglion cell "loose" type | Brown-morphological (B-morpho) | In Fig. 3, cells A, C, E, and G are of the “tight” type, while B, D, and F are of the “loose” type. The dendritic trees of the loose type do not penetrate the internal plexiform layer as deeply as those of the tight type (Table 1 and Fig. 4). The loose-type
cells have fewer dendritic branches per main branch than the tight type (Table 1). the dendrites ramify (the “dendritic field”) may extend as much as 600-700 micrometers in the flat-mounted retina. The main dendrites of the loose type do not penetrate into the plexiform layer as steeply as do those of the tight type. The average size of dendritic field (Table 1) is 397 micrometers for loose-type cells and 282 micrometers for tight-type cells. | partial correspondence | | It appears that most of these cells correspond to the 'loose' type found by Brown in methylene blue-stained... | Bunt A.H. | Mihail Bota |
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| retinal ganglion cell A1 | Huxlin and Goodchild (HG) | Subgroup RGA1 cells (Figs. 2A, 3-5, Table 1) have a morphology similar to that of the giant cells of Bunt (1976). They have large somata, often polygonal in shape, from which a medium- to large-gauge axon emerges (Figs. 2A, 3). In one instance, a bifucarting axon was seen to exit the soma (see Fig. 3A). The large dendritic fields of RGA1 cells consist of three to seven stout dendrites that emerge radially from a centrally placed soma. The dendrites are smooth and overlap infrequently (Figs. 2, 3). RGA1 cells are found across the retina (Figs. 5, 6)and, on average, have the largest dendritic fields of all the RGCs labelled. RGA1 cells exhibited tracer coupling...they were strongly coupled to at least ten neurons (large-bodied gnalgion cells and some presumed amacrine cells-the latter gad very small somata and were found both the GCL and the INL; Fig.5). | synonim | | Subgroup RGA1 cells (Figs. 2A, 3–5, Table 1) have a morphology similar to that of the ‘‘giant’’ cells of Bunt (1976). | Huxlin K.R & Goodchild A.K. | Mihail Bota |
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| retinal ganglion cell Class I | Dreher (Dreher) | HRP-labelled Class I cells, like Type I cells identified by Perry [1979] in Golgi-stained wholemounts of rat retina...have 3-7 fairly large-gauge primary dendrites, each of which bifurcates at least once, with the initial branches being about half the width of the parent dendrite. Their dendritic trees, irrespective of the location of the cell body, tend to be large (up to 470 micrometers in diameter). Class I cells are labelled after HRP injections restricted to the contralateral DLG or SC. | partially corresponds | | ...although the giant ganglion cells described by Bunt [1976] in Golgi-stained retinal sections of albino rat clearly correspond with some of our Class I cells, some of our Class I cells probably correspond to some of Bunt's unistratified and diffuse cells. | Dreher B., Sefton A.J., Ni S.Y.K, Nisbett G. | Mihail Bota |
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| retinal ganglion cell type I | Perry (Perry) | Type I cells have the largest cell bodies of all the classes (see table 1). The primary dendrites are generally smooth in appearance but sometimes have dendritic spines, and roughly halve their diameter at the first bifurcation (see plates 1, figures 1 and 2). The cells have 3 to 6 primary dendrites which enter the inner plexiform layer diagonally and appear to terminate in the outer part of inner plexiform layer. On many of these cells an axon could be identified and the axons were in general the thickest observed. | is included | | ...included in this class are the occasional 'giant' ganglion cells similar to those described by Bunt (1976) in the rat retina. The dendrites of these cells are coarser than most type I cells but the pattern of branching is similar to that of other type I cells. | Perry V.H. | Mihail Bota |
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