128 



Bones of the Lower Extremity. 



Trochanter 

 major 



Fovea capitis 



Gaput femoris 

 Collum femoris 

 Linea intertrochanterica 

 Trochanter minor 



Epicondylua 



lateralis 



Epicondylus 

 medialis 



Condylus 

 lateralis 



Facies 

 patellaris 



Condylus 

 inedialis 



168. Right thigh bone, 



femur, from in front. 



The femur (see also Figs. 169177) 

 (thigh bone) is the longest cylindrical bone 

 of the human body and lies in the thigh ; 

 it articulates above with the acetabulum 

 of the hip bone, below with the tibia and 

 is so situated that its long axis is oblique 

 in that the two thigh bones converge toward 

 one another at their lower extremities. 



The thigh bone is divisible into a si i a It 

 or corpus, and two extremities. 



The corpus femoris (shaft) (see also 

 Figs. 169, 170, 172*, 176 and 177) is 

 curved so as to be slightly convex in front 

 and is nearly triangularly prismatic. Its 

 anterior surface is very convexly curved in 

 transverse direction and goes over without 

 sharp limit into the two lateral surfaces 

 whi"h are also directed backward; these 

 latter meet in tin 1 middle In-hind in a 

 rough ridge, linea aspera, on which two 

 lips are distinguishable, an external, labium 

 laterale, and an internal, labium mediale. 

 Below and above, these two lips diver-'-: 

 below they go to the tw cnndyles and 

 leave between them a flat, triangular field, 

 planum popliteum (0. T. ]>"pliteal space). 

 Above, the medial lip extends partly toward 

 the trochanter minor and forms a tolerably 

 distinct ridge, linea pec tinea , in part it 

 bonds below the trochanter minor forward 

 and upward and is continued into the linea 

 intertrochanterica; the lateral lip turns 

 outward and goes over into an oblong 

 rough field, tubei*ositas glutaea, which 

 sometimes projects like a comb as the so- 

 called trochanter tertius. 



In the middle of the linea aspera 

 can be seen usually one large or several 

 smaller foramina nutricia, which lead into 

 candles nutricii, directed proximalward . 



