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. The brain from ape to man; a contribution to the study of the evolution and development of the human brain. Brain; Evolution; Pongidae. 50 , THE LOWER PRIMATES ventricle, is the trianiiular nucleus of Schwalhe (NSc), and lateral to this a large-celled nucleus known as Deiters' nucleus (ND). Together they constitute the vestibular area. Dispersed among the cells of Deiters' nucleus. FIG. 26. LEMUR MONGOZ. LEVEL OF THE VESTIBULAR COMPLEX. CTT, Central Tegmental Tract; dt, Deiterso-spinal Tract; gow. Ventral Spinocerebellar Tract; icp, Inferior Cerebellar Peduncle; mf, Mesial Fillet; nd, Nucleu
. The brain from ape to man; a contribution to the study of the evolution and development of the human brain. Brain; Evolution; Pongidae. 50 , THE LOWER PRIMATES ventricle, is the trianiiular nucleus of Schwalhe (NSc), and lateral to this a large-celled nucleus known as Deiters' nucleus (ND). Together they constitute the vestibular area. Dispersed among the cells of Deiters' nucleus. FIG. 26. LEMUR MONGOZ. LEVEL OF THE VESTIBULAR COMPLEX. CTT, Central Tegmental Tract; dt, Deiterso-spinal Tract; gow. Ventral Spinocerebellar Tract; icp, Inferior Cerebellar Peduncle; mf, Mesial Fillet; nd, Nucleus of Deiters; nfs. Facial Nucleus; nr. Nucleus of Rolando; NSC, Nucleus of Schwalbe (Triangularis); n8. Auditory Nerve; pd, Predorsal Bundle; pl. Posterior Longi- tudinal Fasciculus; py, Pyramid; ref. Reticular Formation; rst, Rubrospinal Tract; spt, Spinothalamic Tract; trd. Descending Trigeminal Tract; tub, Tuberculum Acusticum. (Accession No. 147. Section 138. Actual Size, 14 X 4 mm.] are many scattered bundles of nerve fibers representing essential connections of this nucleus. The relative dimensions of the two vestibular nuclei to the rest of the cross section are of especial internst. They provide a basis for estimating the degree of balancing function possessed by the lemur, whose life is spent primarily in the loftiest parts of trees and whose locomotion is adapted to the constantly varying movements of the tree tops. The animal is able to execute difficult locomotor feats with great precision and finds as much security in its balancing under these most difFicult circumstances as the quadruped does upon terra lirma. It is cjuite in keeping, therefore, with the inherent behavioral requirements, to find the central representation of. 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 Tilney, Frederick, 18
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbrain, booksubjectevo