The hydropathic encyclopedia: a system of hydropathy and hygiene .. . ses. Sinuses of the Dura Mater.—These are irregular channels,formed by a splitting of the layers of the membrane, which ore linedby a continuation of the inner coat of the veins. The principal are:1. Superior longitudinal; attached to the falx cerebri; it extendsalong the middle line of the arch of the skull to the occipital bone,where it divides into the lateral sinuses. Its termination forms a dilatation, called torcular Herophili, which is the point of communicationof the six sinuses, the superior longitudinal, two latera
The hydropathic encyclopedia: a system of hydropathy and hygiene .. . ses. Sinuses of the Dura Mater.—These are irregular channels,formed by a splitting of the layers of the membrane, which ore linedby a continuation of the inner coat of the veins. The principal are:1. Superior longitudinal; attached to the falx cerebri; it extendsalong the middle line of the arch of the skull to the occipital bone,where it divides into the lateral sinuses. Its termination forms a dilatation, called torcular Herophili, which is the point of communicationof the six sinuses, the superior longitudinal, two lateral, two occipitaland tho straight. 2. Inferior longitudinal; situated in the lower freemargin of the falx cerebri, terminating in the straight sinus. 3Straight; extends across the tentorium, from the inferior longitudinalto the torcular Herophili. 4. Occipital; two canals commencingaround the foramen magnum, and term nating in the torcular Hero-phili. 5 Lateral; these commence at the torcular Hsrophii, andterminate in the internal jugulars. ANGEIOLOGY 16* Fig. 6INUSE9 Off THE BRAIN. !ig. 79 represents a part oftile sinuses of the dura Superior longitudinal si-nus. 2, 2. Entrance of veinsof the pia mater. 3. Falxcerebri. 4. Inferior longitu-dinal sinus. 5. Straight orfourth sinus. 6. Venaa Ga«leni. 7. Torcular Lateral sinuEes. 9. Infe-rior petrosal sinus. 10, jugular veins. Sinuses of the Baseof the Skull.—These»re five in number: ; situated oneach side of the sellaturcica, receiving theophthalmic veins, andterminating in the inferior petrosal. 2. Inferior petrosal; terminates inthe internal jugular with the lateral. 3. Circular; surrounds the pitu-itary gland in the sella turcica, communicating on each side with thecavernous. 4. Superior petrosal; this establishes a communication be-tween the cavernous and lateral on each side. 5. Transverse ; passaaacross the bosilir process of the occipital, forming a communication withthe
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