148 LABORATORY MANUAL OF HUMAN ANATOMY 



distalward. The boundaries of the triangle may now be defined 

 and its contents dissected out. Remove the femoral sheath and 

 clean the vessels, nerves, and muscles related to the triangle. 



How is the femoral triangle bounded above, lateralward, and 

 medialward? How is its floor formed? 



Among the contents find and study the following, comparing 

 your findings with the descriptions in a systematic text-book. 



Arteries. (Fig. 59.) 



(a) Femoral artery (A. femoralis). Study carefully the relations of 

 this artery in different parts of Scarpa's triangle. 



(aa) Superficial epigastric artery (A. epigastrica superficialis}. 



(ab) Superficial circumflex iliac artery (A. circumflexa ilium 



superficialis). 



(ac) External pudendal arteries (Aa. pudendae externae) (0. T. 



superficial and deep external pudic arteries). 



(ad) Inguinal rami (rami inguinales). 



(ae) Muscular rami (rami musculares) . 



(af) Deep artery of thigh (A. profunda femoris). 



(a fa) Medial circumflex artery of thigh (A. circumflexa 



femoris medialis) (0. T. internal circumflex). 



(afb) Lateral circumflex artery of thigh (A. circumflexa 



femoris lateralis) (0. T. external circumflex). 



(afc) Superficial ramus (ramus superficialis). 



Veins. 



(a) Femoral vein (V. femoralis). 



(aa) Superficial epigastric vein (V. epigastrica superficialis). 



(ab) Superficial circumflex iliac vein (V. circumflexa ilium 



superficialis). 



(ac) Thoraco-epigastric vein (V. thoraco-epigastrica) . 



(ad) External pudendal veins (Vv. pudendae externae) (0. T. 



external pudic veins). 



(ae) Large saphenous vein (V. saphena magna) (0. T. internal 



saphenous). 



(af) Deep vein of thigh (V. profunda femoris). 



(afa) Medial circumflex veins of thigh (Vv. circumflexae 



femoris mediates) . 



(afb) Lateral circumflex veins of thigh (Vv. circum- 



flexae femoris later ales}. 



Nerves. 



(a) Lumbo-inguinal nerve (N. lumbo-inguinalis) (0. T. crural branch 



of genitocrural). 



(b) Lateral cutaneous nerve of thigh (N. cutaneus femoris lateralis) 



(0. T. external cutaneous). 

 How much of this nerve is in the triangle? 



(c) Femoral nerve (N. femoralis) (0. T. anterior crural). 



What is the relation of the branches of this nerve, given off in 

 this fossa, to the A. circumflexa femoris lateralis 1 ? 



