140 



TOPOGEAPHICAL ANATOMY OF 



by a long synovial sheath, which has its proximal limit slightly higher 

 than the level of the summit of the tuber of the calcaneus (5 to 7 cm. 

 proximal to the medial malleolus), and its distal limit about the 

 junction of the first and second fourths of the metatarsus. A sheath 



Patella 



M. vastus medialis 



Femur. ^ 



M. sartoiius- 



V. poplitea. - - 



Saphenous vessels and <j' 

 nerve. 



A. poplitea. - 



M. plantaris. - 



M. semimembranosus. - 



M. gracilis. 



Distal muscular branch 

 of n. tibialis. 



Descending branch of 

 a. femoris posterior. 



X. tibialis. 



> SI. biceps femoris 



X. peronpeus communis. 



M. semitendinosus. X. eutaneus surre posterior. II. gastrocnemius. 



Fig. 93. — Section across the Pelvic Limb at the Level indicated by X in Fig. 81. 



of very similar extent clothes the tendon of the flexor digitorum longus 

 as it traverses the canal provided for it by the medial collateral 

 ligament of the tarsus. Although the two sheaths connected with the 

 tendons of the deep flexor terminate at the same level and close 

 together, they are entirely independent of each other. It is noteworthy 

 also that, close to the medial malleolus, they are separated from each 

 other by a pouch of the joint capsule of the talo-crural articulation. 



