150 LABORATORY MANUAL OF HUMAN ANATOMY 



(b) Highest artery of knee (A. genu supremo] (0. T. anastomotica 

 magna). 



(ba) Saphenous ramus (ramus saphenus). 



(bb) Muscular ramus (ramus muscularis). 

 (be} Articular rami (rami articular e s) . 



Review now the femoral vein throughout its whole course, 

 examining its various tributaries. How does its relative position 

 as regards the femoral artery change as it proceeds distalward 

 towards the hiatus tendineus adductorius? With scissors slit 

 the vein open along its whole length and look for valves. The 

 femoral vein is often thrombosed in the course of typhoid fever, 

 or in pelvic infections, especially during the puerperal period 

 (phlegmasia alba dolens). 



Femoral Nerve and Muscles of Front of Thigh. (Fig. 61.) 



Clean the muscles of the front of the thigh carefully and 



follow the nerve branch to each. 



Study thoroughly the femoral nerve (N. femoralis) (0. T. 



anterior crural) and all its branches, cutaneous and muscular. 



What are these and what do they supply? Does the femoral 



nerve innervate joints! 



Study the form, position, origin, insertion, action, and inner- 



vation of each of the following muscles : 



(a) Tensor muscle of fascia lata (M. tensor fasciae latae) (0. T. tensor 



vaginae femoris). Study exact relation to 

 (aa) Iliotibial band (tractus iliotibialis [Maissiati]) . 



Cut through the iliotibial band below the tensor muscle, 

 deflect it forcibly lateralward, and displace the M. vastus 

 lateralis medialward so as to expose the lateral intermuscu- 

 lar septum (septum inter muscular e [femoris'] laterale). 

 How is it attached at its two edges'? What important 

 structures perforate it? 



Examine also the medial intermuscular septum (septum 

 inter muscular e [femoris] mediale). Which is the stronger, 

 the medial or the lateral septum? 



(b) Quadriceps ("four-headed") muscle of thigh (M. quadriceps femo- 



ris). 



(ba) Rectus ("straight") muscle of thigh (M. rectus femoris}. 



(baa) Bursa M. recti femoris. 



(bb) Vastus lateralis muscle ("lateral great muscle") (M. vastus 



lateralis) (0. T. vastus externus). 

 (be) Vastus medialis muscle ("medial great muscle") (M. vastus 



medialis) (0. T. vastus internus). 

 (bd) Vastus intermedius muscle ("intermediate great muscle") 



(M. vastus intermedius) (0. T. crureus). 



Cut through the M. rectus femoris at its middle and 



reflect distal end forcibly. Find the groove between the M. 



