132 



LABORATORY MANUAL OF HUMAN ANATOMY 



The exposed parts of each of these muscles should be care- 

 fully cleaned. 



Eemove the fat of the fossa, carefully dissecting out its con- 

 tents (vide infra). 



In cleaning the structures in the fossa, avoid disturbing their 

 relations. 



FIG. 51. 



Tend. M. quadriceps fern. 

 Patella 



Fascia lata 



.Strat. synoviale 



M. quadriceps fern. 

 Lig. patell. prop. med. . % 



Femur...- 



M. quadriceps fern, et 

 M. tensor fasciae latae 



Condyl. med.... 



M. gracilis - 



N. saphenamag..-' 

 M. sartorius 



Cap. art. over the cond. med. 



M. semimemb. 



M. semitend. i 

 M. gastroc. (caput med.) 



- Cond. lat. 



Cap. art. over 

 the cond. lat. 



M. gastroc. 

 (caput lat.) 



. M. biceps fern. 



N. peronaeus com. 



N. tibialis 



V. poplitea 

 A. poplitea 



Lymphogland. poplit. 



Cross-section of the articulatio genu, passing through the middle of the patella. Right side, seg- 

 ment distal to the line of section (P. Fredet). (From Poirier et Charpy, Traite d'Anat. hum., Paris, 

 1901, 2 ed., t. ii. p. 242, Fig. 180.) 



Contents of Fossa Poplitea. (Figs. 51-53.) 



Nerves. (Figs. 51 and 52.) 



(a) Tibial nerve (N. tibialis) (0. T. internal popliteal nerve). What 



is its position in the fossa? 



(aa) Muscular branches (rami muscular es). Dissect each mus- 

 cular branch out carefully and trace into the muscle. 

 (db) Articular branch (ramus articularis) . 

 (ac) Medial cutaneous nerve of the calf (N. cutaneus surae 



medialis) (0. T. nervus communicans tibialis). 

 Interosseous nerve of the leg (N. interosseus cruris). 



