. Elements of biology; a practical text-book correlating botany, zoology, and human physiology. Biology. THE SKELETON 375 passes. Part of the base of the cranium is formed by the sphenoid and eth- moid bones. Part of the former bone extends upward between the frontal and temporal bones. The skull shows wonderful adaptations for its varied functions. The brain case is compactly built, its arched roof giving strength. The eye and inner ear are protected in sockets of bone. The lower jaw works upon a hinge, and furnishes attachment for strong mus- cles which move the jaw. Try to add other adaptat
. Elements of biology; a practical text-book correlating botany, zoology, and human physiology. Biology. THE SKELETON 375 passes. Part of the base of the cranium is formed by the sphenoid and eth- moid bones. Part of the former bone extends upward between the frontal and temporal bones. The skull shows wonderful adaptations for its varied functions. The brain case is compactly built, its arched roof giving strength. The eye and inner ear are protected in sockets of bone. The lower jaw works upon a hinge, and furnishes attachment for strong mus- cles which move the jaw. Try to add other adaptations to this 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 Hunter, George William, 1873-1948. New York, American book company
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