Copy reference, caption or embed code

Fig 1 - Sign-conserving amacrine neurons in the fly's external plexiform layer

Fig. 1. Anatomical characteristics of lamina amacrine cells, revealed by Golgi staining and electron microscopy. ~ A ! Golgi impregnation showing a top–down view of the superficial plexus of amacrine tangential processes with regularly spaced nodes comprising varicose specializations ~ one node shown boxed ! . ~ B ! Golgi impregnation showing converging processes from several amacrines providing apposed varicose specializations at one node ~ boxed ! . ~ C–E ! Low-power electron micrographs showing amacrine tangential process ~ arrowed am in C ! , amacrine swellings distal in the lamina ~ am in D ! , and convergence of amacrine processes, as in boxed areas, denoted by boutons equipped with synaptic specializations ~ arrowed in D & E ! . Receptor profiles are labeled R. ~ F ! Lamina amacrines can have various sizes, spreading through between 6 and 12 optic cartridges. In this schematic, the minimal spacing necessary to provide one optic cartridge with its six amacrine processes ~ indicated by arrowed bracket 2– 6 ! is reconstructed by overlapping five identical amacrine cells ~ 2– 6 ! , the shapes of which correspond to the single element ~ 1 ! shown to the left, which supplies one or two a processes to each of five optic cartridges ~ under bracket 1 ! . ~ G ! Golgi-impregnated amacrine including cell body and cell body fiber. Scale for A ϭ 10 μ m; scale for B ϭ 5 μ m; 1 μ m scale in C also applies to D, E. Scales for F,G ϭ 10 μ m. 
Anatomical characteristics of lamina amacrine cells, revealed by Golgi staining and electron microscopy. ~ A ! Golgi impregnation showing a top–down view of the superficial plexus of amacrine tangential processes with regularly spaced nodes comprising varicose specializations ~ one node shown boxed ! . ~ B ! Golgi impregnation showing converging processes from several amacrines providing apposed varicose specializations at one node ~ boxed ! . ~ C–E ! Low-power electron micrographs showing amacrine tangential process ~ arrowed am in C ! , amacrine swellings distal in the lamina ~ am in D ! , and convergence of amacrine processes, as in boxed areas, denoted by boutons equipped with synaptic specializations ~ arrowed in D & E ! . Receptor profiles are labeled R. ~ F ! Lamina amacrines can have various sizes, spreading through between 6 and 12 optic cartridges. In this schematic, the minimal spacing necessary to provide one optic cartridge with its six amacrine processes ~ indicated by arrowed bracket 2– 6 ! is reconstructed by overlapping five identical amacrine cells ~ 2– 6 ! , the shapes of which correspond to the single element ~ 1 ! shown to the left, which supplies one or two a processes to each of five optic cartridges ~ under bracket 1 ! . ~ G ! Golgi-impregnated amacrine including cell body and cell body fiber. Scale for A ϭ 10 μ m; scale for B ϭ 5 μ m; 1 μ m scale in C also applies to D, E. Scales for F,G ϭ 10 μ m. 
Go to figure page
Reference
Caption
Embed code