. Elementary physiology. Physiology; Physiology. The Skeleton and its Articulations. 27 The cranial bones, by their union, form a hollow case of bone for the protection of the brain; the cavity so formed is rounded or spheroidal above but is flatter at its base. The base is further divided by ridges of bone into three hollows, or fossae,. 21-/-^ Fig. 14.—Section of the adult skull a little to the left of the median plane. (Allen Thomson.) i. I, nasal bone ; 2, perpendicular plate of the ethaioid bone with olfactory foramina and grooves at its upper part ; 3, vomer; 6, inner surface of the fron
. Elementary physiology. Physiology; Physiology. The Skeleton and its Articulations. 27 The cranial bones, by their union, form a hollow case of bone for the protection of the brain; the cavity so formed is rounded or spheroidal above but is flatter at its base. The base is further divided by ridges of bone into three hollows, or fossae,. 21-/-^ Fig. 14.—Section of the adult skull a little to the left of the median plane. (Allen Thomson.) i. I, nasal bone ; 2, perpendicular plate of the ethaioid bone with olfactory foramina and grooves at its upper part ; 3, vomer; 6, inner surface of the frontal bone ; 7, of the parietal bone ; 8, squamous part of the temporal bone ; 9, on the occipital bone below the internal occipital protuberance ; 10, external occipital protuberance ; 17, anterior nasal spine ; 19, on the inner surface of the ramus of the lower jaw, below the sigmoid notch, and above t'le inferior dental foramen. which correspond to divisions of the brain; the posterior fossa lodges the cerebellum., or lesser brain ; the middle and anterior fossae conform to the shape of the base of the greater brain, or cerebnim. Besides smaller holes, or foramina, for the passage of nerves and blood-vessels to and from the brain, the base 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 Moore, Benjamin, 1867?-1922. New York: Longmans, Green, and Co.
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