322 PRACTICAL ANATOMY. 



Two Important Surgical Areas. Scarpa's triangle and Hunter s canal. 



Scarpa's triangle is located on the upper anterior one-third of the thigh. It 

 is divided into an inner and an outer part by the femoral vessels, which bisect the 

 space vertically. It is of surgical importance for the following reasons : 



1. Inguinal and femoral hernia.* are seen here. 



2. Varicocele, dilatation of scrotal or spermatic veins. 



3. Removal of inguinal lymphatic glands may become necessary. 



4. Fracture of the femur and dislocations of its head. 



Common iliac artery 

 SYMPA THETIC NER VE 



Middle sacral artery 



Common iliac vein 

 URETER 



Internal iliac artery 

 External iliac vein 



External iliac artery 



Potterior branch of internal iliac dividing into 

 gluteal and ilio-lumbar arteries 



Lateral sacral art 



SACRAL PLEXUS 



OBTURATOR NERVE 



Obturator artery 



Obliterated hypogaetric . ^~ 



Superior vcaical artery __J|^[ 

 Edge of levator ani 



Pudic artery 



BLADDER 



Jlfiilflle resical artery 



Deep epigastric artery 

 Pubic branch of epi- 

 gastric artery _^^ 

 Common femoral artery ^ 



Long saphenoiis rein 

 Pectin eus muacle 



Obturator arfry 



Adductor magnus 



Internal circumflex artery 



Adductor brevis 



OBTURATOR NER VE (ant. branch) 



Profunda artery 



Adductor longus, hooked aside 



Superficial femoral artery and veir 



GraciliB muscle 

 .Lower part of aartoriue 



Psoae muscle 

 Ilio-lumbar artery 



EXTERNAL CfTA- 

 yEO.L'S XERVE 



Iliacua muscle 

 (iEXITO-CRURAL 



ANTERIOR CRU- 

 RAL NERVE 



Depp circumflex iliac 

 artery 



Superficial circumflex 



iliac arttry 



A\'TEKHIR CKfRAL ff. 

 Gluteal art fry and 

 tuperior ghitcal nerve 

 Tensor fasciae femoris 



'booked aside) 

 Gluteua medius and 



minimus 

 Sartorius muacle 

 MIDDLE CUTA- 

 NEO I'S 2fER VE 



XERVE TO RECTUS 



NERVE TO V A STL'S 

 EXTERN US 



External circumflex ar. 



NERVE TO t'RCREUS 



Kectua, booked aside 

 I*rofunda vein 



LONG SAPHENOUS 

 yERVE AND 

 yERVK TO VAS- 

 TUS INTERNUS 



VaatuB interims 

 muscle 



FIG. 223. THE FEMORAL ARTERY IN SCARPA'S TRIANGLE. 

 (From a dissection by \V. ]. Walsham in St. Bartholomew's Hospital Museum.) 



5. Burrowing of pus from regions above may point here. 



6. Bloodless amputation at the hip involves this region. 



7. Injuries to the vessels and nerves in the space may occur. 



The triangle should be studied as having the following geometrical parts : (i) 

 Roof: skin, superficial and deep fasciae. (2) Floor: iliacus, psoas, pectineus, and 

 adductor longus. (3) Superior boundary : Poupart's ligament. (4) Internal 

 boundary : adductor longus muscle. (5) External boundary : the sartorius muscle. 

 (6) The base : the superior boundary. (7) The apex : conjunction of adductor 



