156 



ANATOMY IN A NUTSHELL. 



The SUPERIOB hemorrhoidal artery is really a continuation of the inferior 

 mesenteric artery and passes behind the rectum to divide into two branches in 

 the meso-rectum. One branch passes od cither side to within about six inches 

 oi the anus where they subdivide to supply the rectum. This artery anasto- 

 moses with the sigmoid, middle and inferior haemorrhoidal arteries. (D) The 

 suprarenal, sometimes called middle capsular, are two in number and come 

 from the abdominal aorta a little below the cceliac axis. They pass obliquely 

 upward and outward over thecrura of the Diaphragm to the suprarenal body. 

 They anastomose with the superior capsular of the phrenic and the inferior 

 capsular of the renal. (E) The renal arteries are two in number which come 



PLATE CCXLIV. 



SPHENOIDAL FISSURE, OPTIC FORAMEN ARTIC. WITH PERPEND'R PLATE- ARTIC. WITH MALAR. 



TEMP'L FOSSA 



ORB [TAL SURFACE 



PTERYGOID RIOGE. 



ZYGOMATIC FOSSA 



+ SPHENODAL 

 TURBINAL BONES 



W\(<k Fn ' ERYG0 WL \1 GROOVE FOR 

 U |« ATINE CANAL. ALA OF VOMER 



' VAGlNALPf?0C L ROSTRUM. 



* ARTIC. WITH VOMER. 



PTERYGOIO PLATES EXT. y IN"D 



HAMULAR PROCESSES 



{ ,\ TEMPORAL. 



EXT. PTERYGOID. 

 FORAMEN ROTUNDUM 

 VIDIAN CANAL. 

 SPINOUS PROC. 



FORAMEN SPJNOSUM. 



NOTCH . 



Anterior View of Sphenoid Bone. 



from tin abdominal aorta about a half an inch below the superior mesenteric. 

 The one on the righl side is a little lower than the one on the left side because 

 the kidney is a little lower. Each passes outward to supply the kidney. The 

 righl one passing behind the inferior vena cave. As they enter the kidney 

 each divides into four or five branches. A plexus of nerves accompany this 

 artery, [t supplies branches to the suprarenal body, ureter, and the surround- 

 ing fa1 and muscles. Som< times th< re is a second renal artery. At the hilum 

 of the kidney the position of the structures from before backward are vein, 

 . and ii" (F) The spermatic arteries are t wo small arteries which 



arise jusl b< low the renal arteri< s from the abdominal aorta. They pass down- 

 ward and outward behind the peritoneum but over the Psoas magnus muscle 

 and ur< ter and external iliac artery, the one on the right side also crosses the 

 inferior vena cava) to the internal abdominal ring. Here they pass with the 

 spermatic vein- and spermatic plexuses and vas deferens through the inguinal 

 canal t<> puss out the i xternal abdominal ring into the scrotum where it sup- 



