MANUAL OF ANATOMY, 



THE HEAD, Anterior. 



THE LANDMARKS. 



The student should fully investigate the landmarks of 

 the head with especial reference to the subject of cerebral 

 topography. A brief resume of the more important guides 

 is given below. See Fig. i. 



All hair should be shaved or carefully clipped from the 

 scalp and face. 



In the Median Line. The nasion is the centre of the 

 nasofrontal suture and is marked by a groove at the root 

 of the nose where it joins the forehead. 



This is the more accurate point from which to measure 

 for cerebral localizations than from the point usually given, 

 namely the glabella, which is the smooth surface between 

 the superciliary ridges and above the nasion. 



Next the bregma, the junction of the coronal and sagit- 

 tal sutures, and the lambda, the intersections of the sagit- 

 tal and lambdoid sutures, are useful anatomical points to 

 remember. 



The former lies half an inch in front of a vertical line 

 drawn upward from the external auditory meatus, the latter 

 2 y^ inches above the inion. 



2 17 



