. A text-book of comparative physiology for students and practitioners of comparative (veterinary) medicine . Fig. 354.—Diagrammatic horizontal section of a vertebrate brain (Huxley). The follow-ing letters serve for both this figure and the one following. Mb, mid-brain. Whatlies in front of this is the fore-brain, and what lies behind, the hind-brain. L. t,the lamina terminalis; Olf, olfactory lobes; limp, hemispheres; T/i. E, thala-mencephalon; Pn, pineal gland; Py, pituitary body; FM, foramen of Munro; CS,corpus striatum; Th, optic thalamus; CQ, corpora quadrigemina; CC, crura cere-bri; Cb,
. A text-book of comparative physiology for students and practitioners of comparative (veterinary) medicine . Fig. 354.—Diagrammatic horizontal section of a vertebrate brain (Huxley). The follow-ing letters serve for both this figure and the one following. Mb, mid-brain. Whatlies in front of this is the fore-brain, and what lies behind, the hind-brain. L. t,the lamina terminalis; Olf, olfactory lobes; limp, hemispheres; T/i. E, thala-mencephalon; Pn, pineal gland; Py, pituitary body; FM, foramen of Munro; CS,corpus striatum; Th, optic thalamus; CQ, corpora quadrigemina; CC, crura cere-bri; Cb, cerebellum; PV, pons Varolii; MO, medulla oblongata; /, olfactori i; II,optici; III, point of exit from brain of motores oculorum; IV, of pathetici; VI,of abducentes; V—XII, origins of the other cerebral nerves. 1, olfactory ven-tricle; 2, lateral ventricle; 3, third ventricle; 4, fourth ventricle; +, iter a tertioad quartum ventriculum. and the main basal ganglia; between the gray matter of theconvolutions on the same side, and between the latter and those. Fio. 355.—A longitudinal and vertical section of a vertebrate brain (Huxley). Lettersas above. The lamina terminalis is represented by the strong black line betweenFMimA Z. THE BRAIN. 495 on the opposite halves; between the gray matter of the cortexand the internal capsule, the corpora striata, optic thalami, ponsVarolii, the medulla oblongata, and so to the spinal cord. Thecourse of the latter tracts of fibers have been, especially by thehelp of pathology, definitely followed. Some of these connec-tions are given in more detail below. 1. Cerebro-cerebellar fibers, (a.) From the cortical cells ofthe anterior cerebral lobe to tbe pons Varolii, passing throughthe internal capsule and thence through the lower and outerpart of the crus cerebri (crusta). (b.) Fibers from the occipitaland temporo-sphenoidal lobes, passing by the crusta, reach theupper surface of the cerebellum. 2. Fibers bridging the tivo sides of the cere
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1890
