. Elements of the comparative anatomy of vertebrates. Anatomy, Comparative. -Jiff EiG. 145.—Human Ekain. (Median longitudinal vertical section.) (Mainly after Reicliert.) VH, cerebrum ; To, optic thalamus (thalamencephalon), with the middle commis- sure (Cm); Z. pineal body; T, infundibulum; H, pituitary body; ME, corpora bigemina, with the aqueduct of Sylvius (Aq), anterior to which is seen the posterior commissure (Cp); HH, cerebellum; NH, medulla oblongata, with the pons Varolii (P); i?, spinal cord ; B, corpus callosum ; G, fornix, which extends antero-ventrally to the lamina terminalis (C
. Elements of the comparative anatomy of vertebrates. Anatomy, Comparative. -Jiff EiG. 145.—Human Ekain. (Median longitudinal vertical section.) (Mainly after Reicliert.) VH, cerebrum ; To, optic thalamus (thalamencephalon), with the middle commis- sure (Cm); Z. pineal body; T, infundibulum; H, pituitary body; ME, corpora bigemina, with the aqueduct of Sylvius (Aq), anterior to which is seen the posterior commissure (Cp); HH, cerebellum; NH, medulla oblongata, with the pons Varolii (P); i?, spinal cord ; B, corpus callosum ; G, fornix, which extends antero-ventrally to the lamina terminalis (Col), in the upper part of which is seen the anterior commissure (Co), and between the latter and the optic thalami (To) the foramen of Monro (FM); Tcli, tela choroidea; /, olfactory nerve ; //, optic Fig. 146.—CoxvolutiOns of the Human Bkaix. (After A. Ecker.) Lf, frontal lobe ; L-p, parietal lobe ; Lo, occipital lobe ; T, temporal lobe ; n, h, c, superior, middle, and inferior frontal gj'ri ; X, $, anterior and posterior central convolutions, separated from one another by the fissure of Rolando (i?) ; cm, the calloso-marginal sulcus on the dorsal surface ; P, P^, superior and inferior parietal gyri separated from one another by the interparietal fissure (/) ; Po, parietal-occipital fissure ; FS, Sylvian fissure ; 1 to 3, superior, middle, and inferior temporal convolutions ; HH, cerebellum ; NH, medulla oblongata ; E, spinal cord. with the roof of the thalamencephalon and contains nervous substance; its distal end has the form of a rounded or oval sac, consisting of compact epithelial tissue and containing concre- tions. No indication of a parietal organ can be 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 Wiedersheim, Robert, 1848-1923; Parker, William Newton, 1857-1923. London,
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