胶原板层结构 lamellae of fine collagen network fibl bl robarts
11 胶原板层结构 lamellae of fine collagen f.network fibroblasts
The reasons of cornea transparent No blood vessels pigments a Basal of epi. is plane Uniform spacing of collagen fibrils and lamellae in stroma IG.s. with transparent nature maintains proper water
12 The reasons of cornea transparent ◼ No blood vessels & pigments ◼ Basal of epi. is plane ◼ Uniform spacing of collagen fibrils and lamellae in stroma ◼ G.S. with transparent nature & maintains proper water
Retina Comea Antenor chamber Limbus Schlemm canal Two regions: Lens The nonphotosensitive region Chary muscle Ora serrata Posterior Ciliary body (nonvisual part) chamber and process Located anterior to the ora serrata, Photosensitive retina photoreceptors Scera no pl Fovea The photosensitive region Sclera optic par t) gment epithelium/ Choro Lines the inner surface of the eye posterior to the ora serrata(except Optic nerve he optic papilla 13
13 Retina Two regions: ◼The nonphotosensitive region (nonvisual part) Located anterior to the ora serrata, no photoreceptors. ◼The photosensitive region (optic part) Lines the inner surface of the eye posterior to the ora serrata (except the optic papilla)
Retina 4 layers of cells 'choroid pigment epithelium Pi outer segments 1gment cells photoreceptor inner segments O tic cells outer nuclear p outer plexiform layer(OPL) ell Bipolar cells Be2s inner nuclear bipolar cell amacrine Ganglion cells inner plexiform laver (IPL) ganglion cell layer(CCL) gang lion cell tic fiber la (OFL) 14
14 Retina 4 layers of cells: ▪ Pigment cells ▪ Optic cells ▪ Bipollar cells ▪ Ganglion cells