138 



THE BONES. 



from the summit of the trochanter to the posterior face of the bone, where it 

 gradually subsides. 



The [inferior extremity is flattened before and behind ; consequently, its laro-er 

 axis crosses at a right angle that of the upper extremity. It is distinguished by 

 the presence of tzvo condyles and a trochlea. The two condyles, placed behind, 

 one beside the other, articulate with the superior extremity of the tibia. They 

 are separated by a deep depression designated the intercondyloid fossa, which 

 lodges the spine of the tibia and the interosseous ligaments of the femoro-tibial 



Fig. 89. 



Fig. 90. 



LEFT FEMUR (ANTERIOR VIEW). 



1, Head ; 2, 2, trochanter major, with its 

 crest ; 3, trochanter minor, subtrochan- 

 terian crest, or third trochanter; 4, in- 

 ternal trochanter ; 5, notch for insertion 

 of ligamentum teres ; 7, 8, tuberosities 

 for tendinous and ligamentous insertion ; 

 9, trochlea. 



LEFT FEMUR (POST^IOR VIEW). 



Head ; 2, trochanter major ; 3, trochanter 

 minor ; 4, internal trochanter ; 5, fossa 

 for insertion of ligamentum teres ; 6, 

 trochanteric fossa; 7, 8, tuberosities; 9, 

 fossa for the insertion of the external 

 meniscus; 10, supra-condyloid fossa ; 11, 

 condyles. 



articulation. The external condyle bears, outwardly, two fossag — one superior, for 

 ligamentous insertion ; the other, inferior, for muscular attachment. The 

 internal condyle presents, posteriorly and inwardly, near the posterior extremity 

 of the intercondyloid notch, a roughened depression for the insertion of the 

 fibro-cartilaginous meniscus interposed between the external condyle and the 

 corresponding articular plane of the tibia. It is surmounted outwardly — on 

 the side opposite to the intercondyloid notch — by a large tubercle for insertion. 

 The trochlea, a wide pulley on which the patella glides, is situated in front of 



