Joints of the Lower Extremity. 



209 



Corpus femoris 



Tendo in. adductoris niagni - 

 (cut through) 



Caput mediale 



m. gastrocnemii 



(cut through) 



Ligamentum 

 collaterale tibiale 



Ligamentum 

 popliteum obliquum 



Tendo m. semi- 

 membranosi " 

 (cut through) 



M. popliteus (cut through) .- 



M. plantaris et 

 caput laterale 



in. gastrocnemii 

 (cut through) 



Ligamentum 

 collaterale fibulare 



Ligamentum 

 popliteum arcuatum 



Ketinaculum liga- 

 menti arcuati 



M. popliteus 

 (cut through) 



Capitulum 

 fibulae 



Tibia 



258. Right knee joint, articulalio genu, from behind. 



(The muscles partially fused with the capsule have been cut off, close to their attachment.) 



Articulatio genu (continued). It has, on the posterior surface, the following streng- 

 thening 1 ligaments: 



The- powerful, flat lig amentum popliteum obliquum (0. T. posterior ligament) extends 

 from the region of the condylus lateralis femoris obliquely median ward and downward ; its fibres 

 become lost, partially descending in the wall of the capsule and in the fascia of the m. popliteus, 

 partially by bending around upward and going over into the tendon of the m. semimembranosus. 



The ligamentum popliteum arcualwn is a somewhat variable, usually horse-shoe shaped 

 band of fibres, concave above, which arises in the region of the epicondylus lateralis and becomes 

 lost in the middle of the posterior wall of the capsule below the ligamentum popliteum obliquum. 

 From the convex circumference of the ligament the retinaculum ligamenti arcuati goes off 

 with two converging limbs; it has a narrow attachment to the capitulum fibulae; from the 



place, also, a part of the m. popliteus arises. 

 Spalteholz, Atlas. 14 



