| Cell type (class) | Nomenclature (Acronym) |
Definition | Relation of large ganglion cell |
| Annotation | Reference |
Collator |
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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. | synonym | | 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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| 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). | synonym | | 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 | 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). | synonym | | 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 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. | synonym | | 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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