17 s - 



HUMAN ANATOMY. 



mo,, n 



Lung 



Diaphragm 

 Bptecn 



,h..ws one or m-iv notches in 93 per cent. of the cases. They are most com 

 n tlu- lower l-art of the border, which is sometimes quite scalloped. The />- 

 Mhr' formerly the margo MM,, separating the phrenic surface from the 

 , ,,,,,,-h Uss prominent. Parsons found notches in it in 32 per cent. , but he 

 ,. 'I nl ,,;,,, of this border is very different from the preceding, being m the 

 , s,lid md uniform. The phrenic surface occasionally (20 per cent. ) presents a 

 "ha , fi sun, run-lv nu,,v ,ha,! ,,ne. It usually starts from a notch , the posterior 

 bJ,r and U ,,, ,.iu,u, across this surface, forwarded upward.^ Less fre- 



FIG. 1 504. anterior border, or lies en- 



tirely in the convexity, 

 reaching neither border. 



The renal surface, 

 facing inward, does not 

 extend so high as the pre- 

 ceding. It is enclosed by 

 the posterior border, the 

 internal or intermediate 

 border, which separates it 

 from the gastric surface, 

 and by one side of the ba- 

 sal surface. In the upper 

 third this surface is nearly 

 plane, resting against the 

 suprarenal capsule, and in 

 the lower two-thirds dis- 

 tinctly concave, where it is 

 moulded over the upper 

 part of the left kidney. 

 The end of the pancreas, 

 if that organ be short, may 

 rest against the anterior 

 part of this surface. 



The gastric surface, 

 considerably larger than 

 the preceding, is bounded 

 by the intermediate and 

 anterior borders and, be- 

 low, by another side of 

 the base. It is concave, 

 lx in- fr tlu- mo-t part moulded over the stomach. It contains the hi htm, a fissure 

 some inch and a half long, running parallel to the intermediate border and about 

 OIK half inch distant from it, which receives the vessels. The part of this surface 

 uhich is not against tlu- stomach is at the lower end, and rests against the splenic 

 tli-xun- of tlu- colon. In some cases, when the stomach is contracted and the colon 

 distended. tlu- relative an -as of the two may be reversed. Moreover, the omentum 

 in, i\ re.u h tlu- spleen 1>< -twecn them. The tail of the pancreas may touch the right 

 part of this surface oi , if long, lir against tlu- spk-c-n just above the colon. 



Tlu- basal surface is a triangular an-a, much smaller than the other surfaces. 

 It is rnclosrd by the lower part of the posterior border of the spleen and by two lines 

 divrrvjin^ from tlu- low-r end of the intermediate border. One of those separate-* 

 the I face from the ^aMiic and the other from the renal surface. One or both 



of these lim-, may U- so rudimentary that the base may seem a part of either the 



Journal of Anatomy and Physiology, vol. xxxv., 1901. 



magnus 



Portero-lateral wall of fotiiriliti subjrrt has been removed to show relations of 



spln-ll ll.ll<lrnr<l III Sitll. 



