THE FRONT OF THE THIGH 



407 



when the thigh is slightly flexed, abducted, and laterally 

 rotated. 



In its proximal half the artery lies immediately behind the 

 deep fascia covering the femoral trigone. -It may be compressed 

 against the head of the femur, but owing to the shape of the 

 latter, this method of occluding the vessel is unreliable. The 



Deep circumflex iliac artery 



Inferior epigastric artery 

 \ 



Abnormal obturator artery 



*&) 



Lymph gland in 



femoral canal 



Septa in femoral 



sheath 



Saphenous nerve 



Spermatic cord 

 Lower end of 

 femoral sheat 

 Superficial extern; 

 pudendal artery 



Sapheno 

 Adductor longus 



Medial cutaneous 

 nerve 



Lateral cutaneous 

 nerve 



Tensor fasciae latae 



Lateral edge of 

 femoral sheath 



Intermediate 

 cutaneous nerve 



Rectus femoris 



FIG. 121. The Femoral Trigone (of Scarpa). The anterior wall of the 

 femoral sheath has been removed. The inferior epigastric and the 

 deep circumflex iliac arteries arise at a lower level than normal, and 

 the former gives off the abnormal obturator artery. 



vessel is usually compressed distally and backwards against the 

 superior ramus of the pubis, which it crosses as it enters the 

 thigh. In cases of disarticulation at the hip-joint, where the 

 vessel is not at once exposed and ligated, the most satisfactory 

 method of arresting hsemorrhage is by compression of the 

 abdominal aorta just above its bifurcation (Macewen). 



Ligature of the femoral artery may be carried out close 



266 



