130 



Bones of the Lower Extremity. 



Collum femoris 



Fovea capitis 



Trochanter major 



Fossa trochanterica 



Crista 

 intertrochanterica 



Trocbanter minor 



L- Linea aspera 



Planum popliteum 



Condylus lateralis 



Epicondylus 

 medialis 



L Condylus 

 medialis 



17O. Right thigh bone, 



femur, from within. 



The inferior extremity of 

 the femur (see also Figs. 168, 169, 

 171, 172, 176 and 177) is thickened 

 and runs out into two strong condyli 

 (condyles), covered with cartilage, which 

 are especially developed backward, where 

 they are, however, separated from one 

 another by a deep notch, the fossa inter- 

 condyloidea. The condylus medialis 

 (0. T. inner condyle) is larger than the 

 condylus lateralis (0. T. outer condyle) ; 

 both, on account of the oblique position of 

 the thigh bone, are situated in the same 

 horizontal plane in the body; the lateral 

 condyle projects further forward in front 

 than does the medial. Both are covered 

 with cartilage behind, beneath, and in 

 front, run together in front to form a 

 common surface, the uppermost part of 

 which, fades patellaris, is hollowed out 

 in the middle like a groove and receives 

 the patella when the knee is extended. 

 The surface, covered with cartilage, is 

 curved so as to be markedly convex in 

 the sagittal direction. The lateral sur- 

 faces of the condyles are rough and each 

 presents a prominent nodule, the epi- 

 condylus medialis (0. T. inner tube- 

 rosity) on the condylus medialis and 

 the epicondylus lateralis (0. T. outer 

 tuberosity) on the condylus lateralis. 

 The fossa intercondyloidea is rough and 

 bounded above toward the planum po- 

 pliteum by the linea intercondyloidea. 



