138 LABORATORY MANUAL OF HUMAN ANATOMY 



Lymphatics. (Fig. 50.) 



Do you find any lymphatic vessels ? If so, determine their course and 

 distribution. Are any lymph-nodes (lymphoglandulae} to be found 

 in this region? 



Great Adductor Muscle (M. adductor magnus). 



After having completed the dissection of the popliteal sur- 

 face, divide the conjoined tendon of the M. semitendinosus and 

 M. biceps, exposing the origin of the M. semimembranosus. 

 After studying the origin of this muscle and charting the length 

 and breadth of its origin, reflect it downward. 



Determine accurately the relation of the M. adductor magnus 

 to the linea aspera. What is the adductor tubercle? The form, 

 position, origin, insertion, action, and innervation of the great 

 adductor muscle can best be studied later. 



Anastomosis upon the Back of the Thigh. (Fig. 54.) 



What vessels enter into the formation of this anastomosis? 

 How would the circulation to the leg be carried on if the common 

 femoral artery were ligated? Where may the femoral artery 

 be ligated most advantageously, and with the greatest possi- 

 bility of the establishment of a collateral circulation? 



ANTERIOR SURFACE OF THIGH (FACIES FEMORIS 



ANTERIOR). 



Skin and Superficial Fascia of Upper Part of Anterior Surface of 



Thigh. 

 Make the following incisions : 



(a) From the spina anterior superior along the line of the inguinal liga- 



ment of Poupart to the symphysis pubis. 



(b) From the medial extremity of (a) downward, just lateral from the 



scrotum and along the medial surface of the thigh for a distance 

 of ten centimetres. 



(c) From the lower extremity of (b) transversely lateralward over the 



anterior surface of the thigh to its lateral aspect. 



Raise the quadrilateral flap thus outlined, taking no fat of the 

 superficial fascia with it. 



In the superficial fascia of the lower part of the anterior 

 abdominal wall two layers are demonstrable, (1) more super- 

 ficial (Camper's fascia), fatty, continuous with the fatty super- 

 ficial fascia of the thigh; and (2) a deeper layer (Scarpa's 

 fascia), devoid of fat, inserted into the fascia lata a little below 

 Poupart 's ligament. Study this fascia in conjunction with the 



