A manual of operative surgery . — cc < X I J UO < m z f en S a)Pxm? 1- Z CO OT ° O < (0 Z : Z111 < S DC tHzUO m -I H i- y z o 5 oc j 5 o y CHAP. I] ANATOMY OF THE BRAIN posterior part of the artery just before it divides, or a pointone and three-quarter inches behind the fronto-malar point anda quarter inch above Reids base line ; this lies over the anteriorpart of the artery close to its origin from the common stem(Fig. 218, page 69). The branches of the artery are more frequently ruptured than. FIG. 194.—DIAGRAM TO SHOW THE RELATIONS OF THE BRAIN TO THE SKULL. [Modified from Reid


A manual of operative surgery . — cc < X I J UO < m z f en S a)Pxm? 1- Z CO OT ° O < (0 Z : Z111 < S DC tHzUO m -I H i- y z o 5 oc j 5 o y CHAP. I] ANATOMY OF THE BRAIN posterior part of the artery just before it divides, or a pointone and three-quarter inches behind the fronto-malar point anda quarter inch above Reids base line ; this lies over the anteriorpart of the artery close to its origin from the common stem(Fig. 218, page 69). The branches of the artery are more frequently ruptured than. FIG. 194.—DIAGRAM TO SHOW THE RELATIONS OF THE BRAIN TO THE SKULL. [Modified from Reid.) , Coronal suture; b, Bregma] F, Kxternal angular process; h, Lambda; , lambdoidsuture; J, Pterion ; M, Mastoid process ; x, Parietal eminence ; , , Anterior andposterior limbs of Sylvian fissure ; F. of R, Fissure of Rolando ; A,, , Ascendingfrontal and ascending parietal convolutions; , , Superior and inferior frontalsulci; 1 , 2 , 3 , Frontal convolutions : , , Superior and inferiortemporo-sphenoidal sulci; i , 2 , 3 , Temporo-sphenoidal convolutions;, Intraparietal suture; , Superior parietal lobule; , Supermarginal con-volution; , Angular gyrus ; , Parieto-occipital fissure; , Occipital lobe. Seealso text. the trunk, and a laceration of the anterior one as it crosses thelower and front angle of the parietal bone is the most common. Relations of the Brain to the Skull.—In dealing with troublesinv


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