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Diagrams of the vertebrate brain. A, first stage, wit three brain vesicles; B, second stage; four brain vesicles; C, D, side view and sagittal section of fully formed brain without cerebral hemisphere.

Brain, Vertebrate

Diagrams of the vertebrate brain. A, first stage, wit three brain vesicles; B, second stage; four brain…

Diagrams of the vertebrate brain. E, H, transverse sections of the brain at different levels. E, the cerebrum; F, of the 'tween brain'; G, of the midbrain; H, of the hindbrain; I, J, side view and sagittal section of a brain with cerebral hemispheres.

Brain, Vertebrate

Diagrams of the vertebrate brain. E, H, transverse sections of the brain at different levels. E, the…

Dorsal view of vertebrate brain with the cavities of the right side exposed.

Brain, Vertebrate

Dorsal view of vertebrate brain with the cavities of the right side exposed.

"Partial section of a Vertebrate brain (diagrammatic). OLF., Olfactory lobe; CH., cerebral hemispheres; C., wall of cerebrum cut to show ventricle, behind this the figure is that of a median section; PA., parietal organ arising from thalamencephalon; Pl., pineal organ; INF., infundibulum descending from thalamencephalon; H., hypophysis; OL., optic lobes; CB., cerebellum; CPL., choroid plexus on roof of fourth ventricle; MO., floor of the medulla oblongata; CC., central canal of spinal cord." -Thomson, 1916

Vertebrate Brain

"Partial section of a Vertebrate brain (diagrammatic). OLF., Olfactory lobe; CH., cerebral hemispheres;…