. The physiology of the domestic animals; a text-book for veterinary and medical students and practitioners. Physiology, Comparative; Domestic animals. Fig. 386.—Vertical Section op Human Retina. {Landois.) a, rods and cones j b, external, j, internal limiting memwanes; c, external, and/, internal nuclear layers: e, external, and g. internal granular layers; k, blood- vessel and nerve-cells; i, nerve-fibres. Fig. 387.—Layers of the Retina. (Landois.) Pi, hexagonal pigment cells; St, rods and cones; La, external limiting membrane; uuK, external nuclear layer; iingr, external granular layer; inK
. The physiology of the domestic animals; a text-book for veterinary and medical students and practitioners. Physiology, Comparative; Domestic animals. Fig. 386.—Vertical Section op Human Retina. {Landois.) a, rods and cones j b, external, j, internal limiting memwanes; c, external, and/, internal nuclear layers: e, external, and g. internal granular layers; k, blood- vessel and nerve-cells; i, nerve-fibres. Fig. 387.—Layers of the Retina. (Landois.) Pi, hexagonal pigment cells; St, rods and cones; La, external limiting membrane; uuK, external nuclear layer; iingr, external granular layer; inK, internal nuclear; tn^r, internal granular; Gi/l, ganglionic nerve-cells; 0. fibresof optic nerve; limiting membrane; Rk, fibres of Mu I ler ; K, nuclei; Sg, spaces for the nervous elements. nerve (Fig. 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-. Philadelphia and London, F. A. Davis
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