. The anatomy of the domestic animals. Veterinary anatomy. THE CEREBRAL HEMISPHERES 789 The fibers of the olfactory strife go to the piriform lobe and hippocampus, the trigonum olfactorium, the area parolfactoria, tlie subcallosal gyrus, and part of the gyTus fornioatus. The central connections of the olfactory apparatus are complex and are not yet fully understood. The anterior cerebral commissure contains fibers which pass from the olfactory bulb of one side by way of the metlial stria; to the bulb of the opposite side; also fibers wliich cross in it from the medial striiE of one side to the
. The anatomy of the domestic animals. Veterinary anatomy. THE CEREBRAL HEMISPHERES 789 The fibers of the olfactory strife go to the piriform lobe and hippocampus, the trigonum olfactorium, the area parolfactoria, tlie subcallosal gyrus, and part of the gyTus fornioatus. The central connections of the olfactory apparatus are complex and are not yet fully understood. The anterior cerebral commissure contains fibers which pass from the olfactory bulb of one side by way of the metlial stria; to the bulb of the opposite side; also fibers wliich cross in it from the medial striiE of one side to the piriform lobe of the opposite side. Many fibers pass to the hippocampus by way of the septum pellucidum, fornix, and fimbria. Other fibers pass in the column of the fornix to the mammillary body and thence to the thalamus by the thalamo-mam- millary bundle. Th(> corpus callosum is the great transverse commissure which connects the two cerebral heniispiieres through about half of their length. On median section. Olfactory bulb _ , - ' Cortex cerebri Corpus medidlare 1 Caudate nucleus - Chorioid plexus - Fornix —Hippocanipus Fig. 542.—Br WITH Lateral Ventricles Opened bt Removal of Up Hemispheres and Must of the Corpus C.^llosuu. (Fig. 639) it is seen to be arched from before backward, white in color, and com- posed substantially of transverse fibers. The middle part or truncus (Truncus corporis callosi) slopes downward and forward and is thinner than the ends. The anterior thickened end, the genu, bends ventrally and backward and thins out to form the rostrum; the latter is continuous with the lamina terminalis. The pos- terior end, the spleniiun, also thick, lies at a considerably higher level than the genu. The dorsal surface is convex in its length, concave transversely; it forms the floor of the longitudinal fissure. It is covered by a thin layer of gray matter (Induseum griseum), in which are strands of longitudinal fibers (Striae longitudi- nales); the latter are a
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectveterinaryanatomy
