Nervous and mental diseases . -*?+ Crossed 3 Uncrossed ,:: Uncrossed fibers of papillo-macular bundle. Fig. 29 A.—Diagram of the optic chiasm, from Wilbrand and Sanger (after Henschen). the optic thalamus of the same side. From these gangUonic bodies fibers then pass outward and backward around the posterior horn of the lateral ventricle, to end in the cortex of the cuneus, the postero- N. Y. Med. Jour., Feb. 4, 1905. 102 DISEASES OF THE CRANIAL NERVES. internal portion of the occipital lobe. This portion of the occipital loberepresents, therefore, half-vision for each eye and
Nervous and mental diseases . -*?+ Crossed 3 Uncrossed ,:: Uncrossed fibers of papillo-macular bundle. Fig. 29 A.—Diagram of the optic chiasm, from Wilbrand and Sanger (after Henschen). the optic thalamus of the same side. From these gangUonic bodies fibers then pass outward and backward around the posterior horn of the lateral ventricle, to end in the cortex of the cuneus, the postero- N. Y. Med. Jour., Feb. 4, 1905. 102 DISEASES OF THE CRANIAL NERVES. internal portion of the occipital lobe. This portion of the occipital loberepresents, therefore, half-vision for each eye and is in relation with the. Left. Right. Fig. 30.—Bliudness in both temporal fields in a case of acromegalia due to injury of the chiasm bypituitary enlargement. The nasal fields are also contracted. lateral halves of the retinae on the same side of each eyeball. Anylesion that interrupts the visual pathway back of the chiasm, or destroysthe visual centers in the cuneus, produces lateral homonymous hemi-anopsia.
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Keywords: ., bookcentury1900, booksubjectmentalillness, booksubjectnervoussys
