THE INFERIOR EXTREMITY 



from each other. The anterior division makes its appear- 



ance through the fascia lata 

 in the distal third of the 

 thigh, anterior to the great 

 saphenous vein. It de- 

 scends towards the knee, 

 and its terminal branches 

 turn forwards and laterally 

 to the anterior aspect of 

 the patella. The posterior 

 division reaches the surface 

 on the medial side of the 

 knee, behind the great 

 saphenous vein, and pro- 

 ceeds distally to supply 

 the integument on the 

 medial side of the proxi- 

 mal part of the leg. But 

 the main stem of the medial 

 cutaneous nerve, before it 

 divides, also sends a few 

 twigs through the fascia 

 lata to reach the skin on 

 the proximal part of the 

 medial aspect of the thigh. 

 These make their appear- 

 ance along the line of the 

 great saphenous vein. 



N. Saphenus (O.T. Long 

 Saphenous). The saphen- 

 ous nerve becomes cuta- 

 neous on the medial side of 

 the knee by perforating the 

 fascia between the tendons 

 of the sartorius and gracilis 

 muscles. The guide to it 



is the saphenous branch 

 FIG. io 7 .-Cutaneous Nerves on the Front f 



Lateral cutaneous 

 nerve of the thigh 



Ilio-inguinal nerve -~ 

 Lumbo-inguinal 



nerve 



Branch from 

 medial cutaneous^ 

 nerve of the thigh 

 Intermediate cuta- 

 neous nerve 

 of the thigh 

 Medial cutaneous - 

 nerve of the thigh 



Great saphenous 

 vein 



Anterior part of 

 medial cutaneous 

 nerve of the thigh 



Infrapatellar branch 

 of saphenous nerve 



Great saphenous _ 



vein 



Saphenous nerve 



Superficial peroneal 



nerve (O.T. musculo- 



cutaneous) 



Deep peroneal nerve 

 (O.T. ant. tibial) 



of the Inferior Extremity. 



, supremo, 



*. ' 



which descends alongside 



of it. It follows the course of the great saphenous vein into 

 the leg. Before it pierces the fascia it gives off an infra- 

 patellar branch. 



