PR A CTICAL ANA TOMY. 



The Vasti Interims and Externus (Fig. 220). Cut the rectus four inches 

 above the patella and turn it aside, guarding well the vessels and nerves. You 

 will take particular notice of the form of the groove or bed in which the rectus 

 lay. This bed is on the front surface of the vastus interims, and is called the 

 crurcns muscle. (Fig. 220.) It is not a separate muscle, but only that part of the 

 vastus interims on which the rectus lay. Along the outer margin of the rectus-bed 

 you will see the descending branch of the external circumflex artery (Fig. 223), 



Femoral vein 



Femoral artery 



FectineuB 

 OB TUBA TOR (ANTERIOR DIV.) 



OBTURATOR (POSTERIOR 

 DIVISION) 



Adductor longus 



Adductor brevls 



f 



OBTURATOR 

 (AXTERIOR 

 DIVISION) 



Qracilis 



Adductor magnus 



GENICULA TK 

 BRANCH Oh' 

 OBTURATOR 



Seini -mem bran oaus 



Sartoriua 



Iliacua 



ANTERIOR CRURAL 



Fsoaa 



Tensor vagina? femoria 



Profunda artery 



Pectineus 

 Hectus femoria 



LONG SAPHENOUS 



NERVE TO VASTUS 

 INTERNUS 



Adductor longuB 

 Femoral artery 



Anastomotica artery 



PA TELL A R BRANCH Of 

 LONG SAPHENOUS 



FIG. 219. ANTERIOR CRURAL AND UIHTKATUR NERVES. (Ellis.) 



attended by the nerve to the vastus externus. This artery lies in a groove which 

 separates the vastus internus from the vastus externus. Develop this groove, 

 and you will be able to turn the vastus externus aside. This latter muscle, the 

 vastus externus, overlaps the outer part of the vastus internus as far as the margin 

 of the rectus. (Fig. 218.) Now trace the rectus and the two vasti downward to 

 their conjoined insertion into the tubercle of the tibia, by the ligamentum patellae. 

 (Fig. 216.) Also note that the vastus internus receives its nerve-supply on its 

 anterior surface. (Fig. 219.) 



Obturator Nerve (Fig. 219). This is a branch of the lumbar plexus. It passes 



