. Elements of human physiology. Physiology. THE BRAIN 635 points fibres pass through the posterior part of the internal capsule and corona radiata {'optic radiations ') to the cortex of the occipital lobe. The fibres forming the optic tracts are the axons of the nerve-cells in the ganglion-cell layer of the retina. Section of the optic nerve therefore is followed by degeneration of these fibres in a central direction. Mixed up with these fibres Fig. Diagram to show connections of optic tracts (after Sherrington). L, left, and K, right retina. OD. Optic decussation (chiasma). OpT. Optic t
. Elements of human physiology. Physiology. THE BRAIN 635 points fibres pass through the posterior part of the internal capsule and corona radiata {'optic radiations ') to the cortex of the occipital lobe. The fibres forming the optic tracts are the axons of the nerve-cells in the ganglion-cell layer of the retina. Section of the optic nerve therefore is followed by degeneration of these fibres in a central direction. Mixed up with these fibres Fig. Diagram to show connections of optic tracts (after Sherrington). L, left, and K, right retina. OD. Optic decussation (chiasma). OpT. Optic tract. NO. Nucleus caudatus. LN. Lenticular nucleus. Th. Optic thalamus. G. External geniculate body. AQ. Anterior corpus quadrigeminum. P. Pulvinar. OpE. Optic radiations running to 0 C, the occipital cortex. Nucleus of 3rd nerve in tloor of Sylvian aqueduct. IV. Fourth ventricle. however are others which run in a centrifugal direction, start- ing from cells in the optic thalamus or adjacent masses of grey matter and terminating in the inner nuclear layer of the retina (Fig. 292). The third or oculo-motor nerve arises from a column of nerve-cells situated at the extreme hind part of the floor of the third ventricle, and from the front part of the floor of the. 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 Starling, Ernest Henry, 1866-1927. Chicago : W. T. Keener
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