. A text-book of comparative physiology for students and practitioners of comparative (veterinary) medicine. Physiology, Comparative. THE BRAIN. 505 Between these lies the interual capsule, through which pass fibers that spread out toward the cortex, as the corona radiata. Pathology, especially, has shown that a lesion of the intra- ventricular portion of the corpus striatum, and, ahove all, of the internal capsule, is followed by failure of voluntary move- ment (akinesia). It would appear tliat a great part of the fibers from the motor area around the fissure of Eolando, pass through the intr
. A text-book of comparative physiology for students and practitioners of comparative (veterinary) medicine. Physiology, Comparative. THE BRAIN. 505 Between these lies the interual capsule, through which pass fibers that spread out toward the cortex, as the corona radiata. Pathology, especially, has shown that a lesion of the intra- ventricular portion of the corpus striatum, and, ahove all, of the internal capsule, is followed by failure of voluntary move- ment (akinesia). It would appear tliat a great part of the fibers from the motor area around the fissure of Eolando, pass through the intra-ventricular parts of the corpus strig,tum, and especially its internal capsule. But it is also to be borne in mind that a large part of the fibers passing fromi the cortex make connection with the cells of the corpus striatum before reaching the cord. These facts render the occurrence of loss of voluntary motor power coniprehensible. The fibers of the peduncles of the brain may be divided into an interior or lower division (crusta), going mostly to the. Fig. 36!!.—Transverse section of human brain (after Daiton). Tliis and the preceding figure are somewhat diagrammatic. 1, pons Varolii; 2,2, crura cerebri; 3,3, in- ternal capsule; 4, 4, corona radiata; 5, optic thalamus; 6, lenticular nucleas; 7, corpus calloBUm. corpus striatum, and a posterior division (tegmentum), passing principally to the optic thalami; many, possihly most of tl|em, ultimately reach the cortex. Many clinical observers do not hesitate to speak of the optic thalamus as sensory in 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 Mills, Wesley, 1847-1915. New York, Appleton
Size: 1754px × 1425px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthormillswes, bookcentury1800, bookdecade1890, bookyear1890
