. The physiology of domestic animals ... Physiology, Comparative; Veterinary physiology. Fig. 386.—Vertical Section of Human q Retina. {Landois.) a, rods and cones; h, external, j, internal limiting membranes; c, external, and/, internal nuclear layers; e. external, and <7. internal granular layers; It, blood- vessel and nerve-cells ; i, nerve-fibres. Fig. 387.—Layers of the Retina. (Landois.) Pi, hexagonal pigment cells; St, rods and cones; Lr, external limiting membrane; uuK, external nuclear layer; iiugr, external granular layer; inK, internal nuclear; ' irttjr. internal granular; Ggl, g
. The physiology of domestic animals ... Physiology, Comparative; Veterinary physiology. Fig. 386.—Vertical Section of Human q Retina. {Landois.) a, rods and cones; h, external, j, internal limiting membranes; c, external, and/, internal nuclear layers; e. external, and <7. internal granular layers; It, blood- vessel and nerve-cells ; i, nerve-fibres. Fig. 387.—Layers of the Retina. (Landois.) Pi, hexagonal pigment cells; St, rods and cones; Lr, external limiting membrane; uuK, external nuclear layer; iiugr, external granular layer; inK, internal nuclear; ' irttjr. internal granular; Ggl, ganglionic nerve-cells; 6. fibres of optic nerve ; X?', internal limiting membrane; Rk, fibres of MHilar; A", nuclei; Sfj, spaces for the nervous elements. nerve (Fisj. 385). At this point, therefore, the retina will consist only of nerve-tubules. At one spot in the centre of the retina no nerve- fibres are to be distinguished, and on account of its color this point is termed the macula lutea, or yellow spot, and is the point of most acute vision. The layers of the retina have been described as follows : First, and 55. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Smith, Robert Meade, 1854-. Chicago, A. Eger
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