| Cell type (class) | Nomenclature (Acronym) |
Definition | Relation of retinal ganglion cell type I |
| Annotation | Reference |
Collator |
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| alpha retinal ganglion cell | Peichl (Peichl) | In cells with alpha-type morphology (Figs. 2, 3), dendritic fields were relatively large and basically monostratified within the IPL. Several stout primary dendrites emerged radially from the soma. These cells (Figs. 2, 3) are contained within Perry's ('79) type I category and are classified here as rat alpah cells because of their resemblance to other mammalian alpha cells (Boycott and Wassle, '74; Peichl et al. '87a, b). | includes | | The results show that the type I cells, defined by Perry ('79), contain at least two classes of ganglion cell, termed alpha and delta cells. | Peichl L. | Mihail Bota |
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| SC-ipsi/contra/dLGN-contralateral projecting retinal ganglion cell | Kondo et al. (Kondo) | In the retina of each side, cells triple-labeled with all of FB, DY and RITC were localized in its lower temporal region (Fig 7b). These triple-labeled cells constituted 14% (16-20 cells per retina) of cells double-labeled with FB and RITC which wee injected separately into the right and left SC; they were mostly of the large type (Fig. 9b, b'). | includes | | Since the vast majority of the ganglion cells sending axon collaterals bilaterally to the LGN or/and SC have been shown in the present study to be larger than 20 micrometers in diameter, they are considered to belong to the type I of retinal ganglion cells, which appear to contain the alpha cells and delta cells of Peichl. It has previously been described that the type I cells, which constitute 1-5% of all retinal ganglion cells, are distributed all over retina, with a slightly higher density in its lower-temporal region, where the bulk of retinal fibers directed ipsilaterally toward the LGN and SC originate. In accordance with the distribution pattern of the ipislaterally projecting ganglion cells, including the multi-collateralized ones, have been demonstrated in the present study to be located almost exclusively in the lower-temporal retinal region. | Kondo Y., Takada M., Honda Y. & Mizuno N. | Mihail Bota |
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| dLGN-ipsi/contra/SC-contralateral projecting retinal ganglion cell | Kondo et al. (Kondo) | Approximately 16% (18-22 cells per retina) of cells double-labeled with FB and DY which were injected into the right and left LGN, were labeled with RITC which was injected into the left SC. These triple-labeled cells were primarily of the large type (Fig 9a, a') and were localized in the lower-temporal retinal region (Fig. 7a). | includes | | Since the vast majority of the ganglion cells sending axon collaterals bilaterally to the LGN or/and SC have been shown in the present study to be larger than 20 micrometers in diameter, they are considered to belong to the type I of retinal ganglion cells, which appear to contain the alpha cells and delta cells of Peichl. It has previously been described that the type I cells, which constitute 1-5% of all retinal ganglion cells, are distributed all over retina, with a slightly higher density in its lower-temporal region, where the bulk of retinal fibers directed ipsilateally toward the LGN and SC originate. In accordance with the distribution pattern of the ipislaterally projecting ganglion cells, including the multi-collateralized ones, have been demosntrated in the present study to be located almost exclusively in the lower-temporal retinal region. | Kondo Y., Takada M., Honda Y. & Mizuno N. | Mihail Bota |
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| SC-ipsi/dLGN-ipsilateral projecting retinal ganglion cell | Kondo et al. (Kondo) | Cells double labeled with both FB [injected ipsilaterally into SC] and DY [injected contralaterally into dLGN] amounted to 140-180 cells per retina, and comprised both large and small cells (Fig. 8f). They made up as many as 76 or 69% of the total FB-positive, or DY-positive cells, respectively, and approximately 56% of the total population of cells containing FB and/or DY. | includes | | Since the vast majority of the ganglion cells sending axon collaterals bilaterally to the LGN or/and SC have been shown in the present study to be larger than 20 micrometers in diameter, they are considered to belong to the type I of retinal ganglion cells, which appear to contain the alpha cells and delta cells of Peichl. It has previously been described that the type I cells, which constitute 1-5% of all retinal ganglion cells, are distributed all over retina, with a slightly higher density in its lower-temporal region, where the bulk of retinal fibers directed ipsilateally toward the LGN and SC originate. In accordance with the distribution pattern of the ipislaterally projecting ganglion cells, including the multi-collateralized ones, have been demosntrated in the present study to be located almost exclusively in the lower-temporal retinal region. | Kondo Y., Takada M., Honda Y. & Mizuno N. | Mihail Bota |
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| SC-ipsi/dLGN-contralateral projecting retinal ganglion cell | Kondo et al. (Kondo) | Approximately 23% (40-50 cells per retina) of the total FB-positive cells [ipsilateral injection into SC] were labeled with DY [contralateral injection into the dLGN]. These double-labeled cells were mostly of the large type (Fig. 8e), and were localized in the lower-temporal retinal region (Fig. 5). | includes | | Since the vast majority of the ganglion cells sending axon collaterals bilaterally to the LGN or/and SC have been shown in the present study to be larger than 20 micrometers in diameter, they are considered to belong to the type I of retinal ganglion cells, which appear to contain the alpha cells and delta cells of Peichl. It has previously been described that the type I cells, which constitute 1-5% of all retinal ganglion cells, are distributed all over retina, with a slightly higher density in its lower-temporal region, where the bulk of retinal fibers directed ipsilateally toward the LGN and SC originate. In accordance with the distribution pattern of the ipislaterally projecting ganglion cells, including the multi-collateralized ones, have been demosntrated in the present study to be located almost exclusively in the lower-temporal retinal region. | Kondo Y., Takada M., Honda Y. & Mizuno N. | Mihail Bota |
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| SC-contra/dLGN-ipsilateral projecting retinal ganglion cell | Kondo et al. (Kondo) | Cells double-labeled with both tracers constituted about 24% (30-40 cells per retina) of the total DY-positive cells. They were mostly large cells, and were confined to the lower-temporal retinal region. | includes | | Since the vast majority of the ganglion cells sending axon collaterals bilaterally to the LGN or/and SC have been shown in the present study to be larger than 20 micrometers in diameter, they are considered to belong to the type I of retinal ganglion cells, which appear to contain the alpha cells and delta cells of Peichl. It has previously been described that the type I cells, which constitute 1-5% of all retinal ganglion cells, are distributed all over retina, with a slightly higher density in its lower-temporal region, where the bulk of retinal fibers directed ipsilateally toward the LGN and SC originate. In accordance with the distribution pattern of the ipislaterally projecting ganglion cells, including the multi-collateralized ones, have been demosntrated in the present study to be located almost exclusively in the lower-temporal retinal region. | Kondo Y., Takada M., Honda Y. & Mizuno N. | Mihail Bota |
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| SC-ipsi/contra projecting retinal ganglion cell | Kondo et al. (Kondo) | Following a ...combined injection, a subtantial number of cells were double-labeled with both DY and FB. These double-labeled cels were approximately 50% (100-130 cells per retina) of the total population of FB-positive cells. They were mostly large cells (Fig. 8c, d), and were localized in the lower-temporal retinal region (Fig. 2). In the lower-temporal retinal region, the cells double-labeled with both FB and DY were observed in its more peripheral zone, and overalpping with those single labeled with FB (Fig. 2). | includes | | Since the vast majority of the ganglion cells sending axon collaterals bilaterally to the LGN or/and SC have been shown in the present study to be larger than 20 micrometers in diameter, they are considered to belong to the type I of retinal ganglion cells, which appear to contain the alpha cells and delta cells of Peichl. It has previously been described that the type I cells, which constitute 1-5% of all retinal ganglion cells, are distributed all over retina, with a slightly higher density in its lower-temporal region, where the bulk of retinal fibers directed ipsilateally toward the LGN and SC originate. In accordance with the distribution pattern of the ipislaterally projecting ganglion cells, including the multi-collateralized ones, have been demosntrated in the present study to be located almost exclusively in the lower-temporal retinal region. | Kondo Y., Takada M., Honda Y. & Mizuno N. | Mihail Bota |
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| inner alpha retinal ganglion cell | Peichl (Peichl) | Rat alpha cell dendritic trees. like those of all mammalian alpha cells, are monostratified in the IPL in either an inner sublamina (inner alpha cell) or an outer sublamina (outer alpha cell). Dendrites of inner alpha cells branch most frequently in the distal dendritic field; near the soma there are dendrite-free zone. | includes | | The present analysis of rat ganglion cells with large somata defined two classes of cell within Perry's ('79) type I category named alpha and delta cells. Collator note: retinal alpha and delta cells are further divided in inner- and outer- retinal ganglion cells. | Peichl L. | Mihail Bota |
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| outer alpha retinal ganglion cell | Peichl (Peichl) | Rat alpha cell dendritic trees. like those of all mammalian alpha cells, are monostratified in the IPL in either an inner sublamina (inner alpha cell) or an outer sublamina (outer alpha cell).The dendrites of outer alpha cells show frequent branching also near the soma so that their dendritic field is more homogeneously filled with processes. | includes | | The present analysis of rat ganglion cells with large somata defined two classes of cell within Perry's ('79) type I category named alpha and delta cells. Collator note: retinal alpha and delta cells are further divided in inner- and outer- retinal ganglion cells. | Peichl L. | Mihail Bota |
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| giant ganglion cell | Bunt (Bunt) | Several examples have been found of giant cells similar to those described by Polyak in the primate retina as having large somata (20 micrometers or greater) and relatively thick dendritic branches which were smooth and spine-free, radiating outward from
the soma to extend throughout the inner plexiform layer. The diameter of the dendritic spread reached 260 micrometers. | includes | | ...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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| 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 | | The type I cells have a similar dendritic morphology to the 'loose' type of ganglion cell described by Brown (1965) in the rat retina. Brown, however, described these cells as having dendrites which terminate in the inner part of the inner plexiform layer, but the type I dendrites terminate in the outer layers of the inner plexiform layer, so the correspondence is not altogether clear. | Perry V.H. | Mihail Bota |
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| diffuse ganglion cell | Bunt (Bunt) | The diffuse ganglion cells (i.e., those whose dendrites did not show stratification, but rather ramified at all levels of the inner plexiform layer) were the most frequently impregnated in this study. The cells were characterized by somata 12-21 micrometers in
diameter and one or several relatively thin apical dendrites which branched and ramified throughout the inner plexiform layer. The branches had a very delicate, often beaded appearance, with occasional spines. Some had relatively small, circumscribed
dendritic fields (84-132 micrometers) (Fig. 1) and others had more complexly branched, wider fields extending from 160 to 360 micrometers in diameter (Figs. 2-4). | partial correspondence | | Type I cells would probably overlap with Bunt's unistratified and idffuse types of ganglion cells. | Perry V.H. | Mihail Bota |
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| dLGN-ipsi/contra projecting retinal ganglion cell | Kondo et al. (Kondo) | Approximately 56% (120-140 cells per retina) of the total FB-positive cells were labeled with DY. These double-labeled cells were primarily of the large type (Fig. 8a, b), and seen mainly in the lower temporal retinal region (Fig.1). In the lower-temporal retinal region...those double-labeled with both FB and DY were located in its more central zone (Fig. 1). | includes | | Since the vast majority of the ganglion cells sending axon collaterals bilaterally to the LGN or/and SC have been shown in the present study to be larger than 20 micrometers in diameter, they are considered to belong to the type I of retinal ganglion cells, which appear to contain the alpha cells and delta cells of Peichl. It has previously been described that the type I cells, which constitute 1-5% of all retinal ganglion cells, are distributed all over retina, with a slightly higher density in its lower-temporal region, where the bulk of retinal fibers directed ipsilateally toward the LGN and SC originate. In accordance with the distribution pattern of the ipislaterally projecting ganglion cells, including the multi-collateralized ones, have been demosntrated in the present study to be located almost exclusively in the lower-temporal retinal region. | Kondo Y., Takada M., Honda Y. & Mizuno N. | Mihail Bota |
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| unistratified retinal ganglion cell | Leure-Dupree (LD) | The ganglion cells observed were of the unistratified type (Polyak, '41); their dendrites did not extend deep into the inner plexiform layer (figs. 19, 20). They were situated close to one another, and therefore, considerable overlapping of the dendritic trees may occur. The range of the dendritic trees of 25 ganglion cells as 20-106.6 micrometers. | partial correspondence | | Leure-Dupree (1974) described only diffuse ganglion cells in the rat retina. Some of my type I and type II cells could appear as diffuse ganglion cells in vertical sections. | Perry V.H. | Mihail Bota |
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| vLGN/LP-ipsilateral projecting retinal ganglion cell | Farid Ahmed et al. (FA) | In the ventral-temporal crescent, single-labeled cells, with EB from vLGN and with FG from LP were distributed in the retina's more peripheral region, while those double-labeled with both EBH and FG were located in its more central region. About 29.8% of labeled retinal ganglion cells were double-labeled in the present study. Retinal ganglion cells that projected ipsilaterally to only the vLGN (58.8%) or LP (11.3%) were of both large (more than 20 micrometers) types, while the double-labeled cells were primarily of the large type. | includes | | ...some retinal ganglion cells project their axons ipsilaterally to both vLGN and LP. These double-labeled cells in the ventrotemporal crescent of the retina can be classified as large-type or type I. | Farid Ahmed A.K.M., Dong K. & Yamadori T. | Mihail Bota |
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| retinal ganglion cell A2 | Huxlin and Goodchild (HG) | Alpha ganglion cells, which were defined by Peichl (1989), were identified and termed RGA2 in the present study (see Table 1). The RGA2 cell has a large soma from which a thick axon emerges. Four to eight stout primary dendrites project radially from the cell body and branch repeatedly in a Y-shaped pattern. The dendrites branch at regular intervals, with the first branch point being within half of a soma diameter of the cell body. This branching pattern gives the appearance of a relatively uniform, medium density of dendrites across the dendritic arbor. The cell body is usually situated at the centre of the dendritic field. They stratify at ... 72 ± 15% of the IPL (inner) or 34 &plusmin; 10% of the IPL (outer). | synonim | | Neurons originally known as Type 1 RGCs,subsequently called Class I and then ‘‘alpha cells’’ (Perry, 1979; Dreher et al., 1985; Reese and Cowey, 1986; Schall et al., 1987; Peichl, 1989; Tauchi et al., 1992), whose dendrites monostratify in the inner or the outer parts of the IPL, were grouped as inner and outer RGA2 cells. Collaot note: see Table 1 page 312. | Huxlin K.R & Goodchild A.K. | Mihail Bota |
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| retinal ganglion cell A2 inner | Huxlin and Goodchild (HG) | Alpha ganglion cells, which were defined by Peichl (1989), were identified and termed RGA2 in the present study (see Table 1). The RGA2 cell has a large soma from which a thick axon emerges. Four to eight stout primary dendrites project radially from the cell body and branch repeatedly in a Y-shaped pattern. The dendrites branch at regular intervals, with the first branch point being within half of a soma diameter of the cell body. This branching pattern gives the appearance of a relatively uniform, medium density of dendrites across the dendritic arbor. The cell body is usually situated at the centre of the dendritic field. They stratify at ... 72 ± 15% of the IPL (inner)... | includes | | Neurons originally known as Type 1 RGCs, subsequently called Class I and then ‘‘alpha cells’’ (Perry, 1979; Dreher et al., 1985; Reese and Cowey, 1986; Schall et al., 1987; Peichl, 1989; Tauchi et al., 1992), whose dendrites monostratify in the inner or the outer parts of the IPL, were grouped as inner and outer RGA2 cells. | Huxlin K.R & Goodchild A.K. | Mihail Bota |
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| retinal ganglion cell A2 outer | Huxlin and Goodchild (HG) | Alpha ganglion cells, which were defined by Peichl (1989), were identified and termed RGA2 in the present study (see Table 1). The RGA2 cell has a large soma from which a thick axon emerges. Four to eight stout primary dendrites project radially from the cell body and branch repeatedly in a Y-shaped pattern. The dendrites branch at regular intervals, with the first branch point being within half of a soma diameter of the cell body. This branching pattern gives the appearance of a relatively uniform, medium density of dendrites across the dendritic arbor. The cell body is usually situated at the centre of the dendritic field. They stratify at ... 34 ± 10% of the IPL (outer)... | includes | | Neurons originally known as Type 1 RGCs, subsequently called Class I and then ‘‘alpha cells’’ (Perry, 1979; Dreher et al., 1985; Reese and Cowey, 1986; Schall et al., 1987; Peichl, 1989; Tauchi et al., 1992), whose dendrites monostratify in the inner or the outer parts of the IPL, were grouped as inner and outer RGA2 cells. | Huxlin K.R & Goodchild A.K. | Mihail Bota |
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| large ganglion cell | Reese and Cowey (RC) | The present study considered the possibility that one particular and relatively rare retinal ganglion cell type may have its peak density on or near the representation of the vertical midline and may display a laterality of projection delineated by that midline representation. ...We consider the variability in Type I cell morphology as a means for exclusively classing every large retinal ganglion cell in the rat. For these reasons, we counted all retrogradely labelled ganglion cells with a soma size greater than 18 micrometers as an approximation to the population of Type I retinal ganglion cells. | synonim | | We consider the variability in Type I cell morphology as a means for exclusively classing every large retinal ganglion cell in the rat. For these reasons, we counted all retrogradely labelled ganglion cells with a soma size greater than 18 micrometers as an approximation to the population of Type I retinal ganglion cells....We frequently encountered cells with the morphological characteristics of Type I cells which were too small to be counted. | Reese B.E. & Cowey A. | 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. | synonim | | ...HRP-labelled Class I cells, like Type I cells identified by Perry [1979] in Golgi-wholemounts of rat retina... | Dreher B., Sefton A.J., Ni S.Y.K, Nisbett G. | Mihail Bota |
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| OP-projecting retinal ganglion cell | Young and Lund (YL) | Following unilateral OPN injections, labelled cells could be detected in both the ipsilateral and contralateral retinae. in the contralateral retina, the majority of Fluoro-Gold labeled cells were seen in the ventral hemiretina, inferior to the horizontal meridian. The majority of the remaining labeled cells were found in the nasal retinal quadrant, mostly in the peripheral and ventral portion of this quadrant. The diameter of labeled RGCs rangted from 7 micrometers to 25 micrometers. There appears to be two distinct populations of cells labeled, with the majority of cells in the smaller diameter group having the diameters ranging from 10-13 micrometers, and a less populous group of larger cells having diameters of 20-25 micrometers. | partially corresponds | | There appears to be two distinct populations of cells labeled, with the majority of cells in the smaller diameter group having the diameters ranging from 10-13 micrometers, and a less populous group of larger cells having diameters of 20-25 micrometers. An example of hte larger diameter group of cells is shown in Fig. 2C. This cell had an average of 22 micrometers and its size and morphology suggest it may be a class I cell, i.e., large cell body and long, straight dendrites. | Young M.J. & Lund R.D. | Mihail Bota |
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