. Chordate anatomy. Chordata; Anatomy, Comparative. 366 CHORDATE ANATOMY sulci which are such a characteristic feature of the surface of the human brain. Changes in the striate body (basal gangUon) are summarized in Fig. ^24. In mammals each striate body extends posteriorly and rests upon the thalamusâUke a sack of flour on a horse's back. Brain Coimnissures. Commissures are fiber tracts which cross the median plane of the body and bring lateral halves of the nervous system into relation with one another. Some of those in the brain persist through-. \^y/^\ MYELENCEPHALDN â pic,. 325.âA diagram
. Chordate anatomy. Chordata; Anatomy, Comparative. 366 CHORDATE ANATOMY sulci which are such a characteristic feature of the surface of the human brain. Changes in the striate body (basal gangUon) are summarized in Fig. ^24. In mammals each striate body extends posteriorly and rests upon the thalamusâUke a sack of flour on a horse's back. Brain Coimnissures. Commissures are fiber tracts which cross the median plane of the body and bring lateral halves of the nervous system into relation with one another. Some of those in the brain persist through-. \^y/^\ MYELENCEPHALDN â pic,. 325.âA diagram of the brain of a four-months fetus as seen in median longi- tudinal section. The figure shows the location of the more important brain commis- sures. (Redrawn from Coming's "Human Embryology," after Burckhardt.) out the vertebrate series, and serve as important topographic landmarks to determine homologous regions. (Fig. 325) Commissures have not been demonstrated in Amphioxus. In the terminal lamina of the telencephalon of cyclostomes are two, a more ventral anterior and a more dorsal pallial. Both connect the olfactory lobes with the hippocampi of the opposite side. Two habenular ganglia in the roof of the diencephalon are connected by the habenular commis- sure. Fibers from the hemispheres and also from the hypothalamus are contained in this commissure. Another commissure in the roof 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 Neal, Herbert V. (Herbert Vincent), 1869-1940; Rand, Herbert W. (Herbert Wilbur), 1872-1960. Philadelphia : P. Blakiston's Son & Co.
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Keywords: ., bookcentury1900, bookpublisherphi, booksubjectanatomycomparative
