. Anatomy, descriptive and applied. Anatomy. THE DURA OF THE BRAIN 965 of the bones, the adhesion being most marked opposite the sutures and at the base of the skuH. Its inner surface is smooth and Hned by a layer of endothelium. It sends inward four processes which divide the cavity of the skull into a series of freely communicating compartments, for the lodgement and protection of the different parts of the brain; and it is prolonged to the outer surface of the skull, through the various foramina whicii exist at the base, and thus becomes continuous with the pericranium; its fibrous layer fo
. Anatomy, descriptive and applied. Anatomy. THE DURA OF THE BRAIN 965 of the bones, the adhesion being most marked opposite the sutures and at the base of the skuH. Its inner surface is smooth and Hned by a layer of endothelium. It sends inward four processes which divide the cavity of the skull into a series of freely communicating compartments, for the lodgement and protection of the different parts of the brain; and it is prolonged to the outer surface of the skull, through the various foramina whicii exist at the base, and thus becomes continuous with the pericranium; its fibrous layer forms sheaths for the nerves which pass through these aper- tures. At the base of the skull it sends a fibrous prolongation into the foramen cecum; it sends a series of tubular prolongations around the fila- ments of the olfactory nerves as they pass through the cribriform plate, and another around the nasal nerve as it passes through the nasal slit; a prolongation is also continued through the sphenoidal fissure into the orbit, and another is carried into the same cavity through the optic foramen, forming a sheath for the optic nerve, which is continued as far as the eyeball. In the posterior fossa it. ^1 LAYER LINING Fig. 724.—The structure of the dura. Section through the cranial vault of a child, slightly enlarged. (Poirier and Charpy.) HRAGMA SELL AE. 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 Gray, Henry, 1825-1861; Spitzka, Edward Anthony, 1876-1922. Philadelphia, New York, Lea & Febiger
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1913
