. The brain in hominid evolution. Human evolution; Brain; Fossil hominids. 1967a) and Homo habilis (Leakey, Tobias, and Napier 1964) from Olduvai (Figure 3). Both a natural and an artificial endocast take faithful impressions of all markings on the interior of the braincase. For example, the meningeal arteries and the cranial venous sinuses leave clear imprints on the inside of the vault-bones of the cranium (Figure 4). So do the major subdivisions of the brain, such as the cerebrum, the cerebellum, and to a certain extent the brainstem (Figure 5). Finer subdivisions of the brain may leave the
. The brain in hominid evolution. Human evolution; Brain; Fossil hominids. 1967a) and Homo habilis (Leakey, Tobias, and Napier 1964) from Olduvai (Figure 3). Both a natural and an artificial endocast take faithful impressions of all markings on the interior of the braincase. For example, the meningeal arteries and the cranial venous sinuses leave clear imprints on the inside of the vault-bones of the cranium (Figure 4). So do the major subdivisions of the brain, such as the cerebrum, the cerebellum, and to a certain extent the brainstem (Figure 5). Finer subdivisions of the brain may leave their mark as well; for example, the convolutions of the cerebral cortex and the sulci separating them are responsible for the well-known impressiones gyrorum on the inner surface of the vault-bones. All these features are, in turn, reflected sensitively on an endocast, whether natural or artificial. Sometimes the filling material in a natural endocast extends into one or more of the foramina in the base. 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 Tobias, Phillip V. New York : Columbia University Press
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Keywords: ., boo, bookcentury1900, booksubjectbrain, booksubjecthumanevolution
