450 



THE INFERIOR EXTREMITY 



to the increased amount of flexion at the knee-joint which 

 is necessary when walking through heather and gorse. The 

 swelling usually enlarges distally in an intermuscular interval 

 and assumes a sausage -shape. Such swellings have been 



FIG. 129. Normal Knee-joint of a Child, aged four. Antero-posterior view. 

 The centre of ossification for the head of the fibula is not yet present. 



mistaken for varicose veins, and they are usually much larger 

 than they appear to be, since they lie under the deep fascia. 



(3) The tendons of the sartorius, gracilis, and semitendinosus 

 are separated from one another at their insertions, and from 

 the tibial collateral (internal lateral) ligament by one or more 

 bursse. 



