. The brain from ape to man; a contribution to the study of the evolution and development of the human brain. Brain; Evolution; Pongidae. 166 THE LOWER PRIMATES functionally more prominent than the hind extremity with its poorly dif- ferentiated foot. This disproportion is less striking than in lemur, for although marmoset makes but limited use of its hand, its tail and hind leg. FIG. 80. MARMOSET. LEVEL OF THE DORSAL SENSORY NUCLEI. CB, Column of Burdach; cen, Central Gray Matter; CG, Column of Goll; dt, Deiterso-spinal Tract; fle. Dorsal Spinocerebellar Tract; GOW, Ventral Spinocerebellar Tr
. The brain from ape to man; a contribution to the study of the evolution and development of the human brain. Brain; Evolution; Pongidae. 166 THE LOWER PRIMATES functionally more prominent than the hind extremity with its poorly dif- ferentiated foot. This disproportion is less striking than in lemur, for although marmoset makes but limited use of its hand, its tail and hind leg. FIG. 80. MARMOSET. LEVEL OF THE DORSAL SENSORY NUCLEI. CB, Column of Burdach; cen, Central Gray Matter; CG, Column of Goll; dt, Deiterso-spinal Tract; fle. Dorsal Spinocerebellar Tract; GOW, Ventral Spinocerebellar Tract; hel, Spino-olivary Tract of Helweg; NB, Nucleus of Burdach; ng, Nucleus of Goll; nr, Nucleus of Rolando; pv, Pyramid, pyx. Pyramidal Decus- sation; REF, Reticular Formation; rst, Rubrospinal Tract; spt. Spinothalamic Tract; trd. Descending Trigeminal Tract; yen, Ventral Gray Matter. [Accession No. 146. Section 8. Actual Size 6X4 mm.] manifest as much adaptive significance as in the case of lemur. That the discriminative type of sensibility has a low representation in marmoset, thus providing a meager substratum for the development of its skilled acts, is further substantiated by the fact that the pyramidal tract (Py) is a. 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, 1875-1938; Riley, Henry Alsop, 1887-. New York, P. B. Hoeber, inc.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbrain, booksubjectevo
