. The brain from ape to man; a contribution to the study of the evolution and development of the human brain. Brain; Evolution; Pongidae. PAPIO CVNOCEPHALUS 327 The major changes appear in the tectal portions of tliis section as the inferior collieiili ( IC). These structures are significant because of the relation thej- bear to the sense of hearing. They are primitive receiving. FIG. 153. BABOON. LEVEL OF THE INFERIOR COLLICULUS. CEN, Central Gray Matter; ctt, Central Tegmental Tract; ic. Inferior Colliculus; lf. Lateral Fillet; mf. Mesial Fillet; N4, Trochlear Nerve; pd, Predorsal Bundle; pl


. The brain from ape to man; a contribution to the study of the evolution and development of the human brain. Brain; Evolution; Pongidae. PAPIO CVNOCEPHALUS 327 The major changes appear in the tectal portions of tliis section as the inferior collieiili ( IC). These structures are significant because of the relation thej- bear to the sense of hearing. They are primitive receiving. FIG. 153. BABOON. LEVEL OF THE INFERIOR COLLICULUS. CEN, Central Gray Matter; ctt, Central Tegmental Tract; ic. Inferior Colliculus; lf. Lateral Fillet; mf. Mesial Fillet; N4, Trochlear Nerve; pd, Predorsal Bundle; pl. Posterior Longitudinal Fasciculus; pn. Pontile Nucleus; pns. Pons Varolii; py. Pyramid; ref, Reticular Formation; rst. Rubrospinal Tract; spt. Spino- thalamic Tract; SPX, Crossing of Superio- Cerebellar Peduncle. [Accession No. 150. Section 351. Actual Size 19 X 15 mm.). 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