PELVIC LIMBS 



699 



FIG. 535. 



size of the greater troclianter, the neck appears to join the shaft at a 

 greater angle than does the neck of the cat's femur, but there is, in 

 fact, little difference, the angle measuring from 

 one hundred and twenty-five to one hundred 

 and thirty degrees. 



The greater trochanter is more quadrate, 

 and its inner posterior edge does not overhang 

 to so marked a degree the digital fossa for the 



O O 



obturator externus muscle. The outer surface 

 is crossed by an oblique line which passes from 

 behind and above forward and downward and 

 receives the glutens medius muscle. The rough 

 space in front of the line is for the insertion of 

 the glutens minimus. On the upper edge of 

 the trochanter are inserted the obturator in- 

 ternus, gemelli, and pyriformis muscles. 



The posterior intertrochanteric line is well 

 marked. At a point near the middle of its 

 length is a distinct tubercle, from which a line 

 is continued downward to the linea aspera ; to 

 the tubercle and the line is attached the quad- 

 ratus femoris muscle. L the shaft ; 2 - head = 3 > neck ; 



4, greater trochanter; 5, anterior 

 The leSSer trOChanter is prominent, and intertrochanteric ridge; 6, lesser 



receives the attachment of the psoas muscle. 



The anterior intertrochanteric line begins 

 in a superior cervical tubercle at the front of 

 the greater trochanter, and ends in an inferior cervical tubercle 011 a 

 level with the lesser trochanter; at this point the spiral line of the 

 linea aspera begins. To the cervical tubercles are attached the limbs 

 of the Y ligament of the hip-joint. 



The shaft presents three borders, limiting three surfaces. Of the 

 borders, the posterior is much more distinct, and is known as the linea 

 aspera of the femur. At the middle of its course it presents two lips 

 and an intervening space ; below, the lips separate to join the supra- 

 condyloid ridges, and the intervening space becomes continuous with 

 the flattened popliteal space. The upper part of the inner lip winds 

 upward and inward, and becomes the spiral line ; the upper part of 

 the outer lip joins a long, roughened space, sometimes called the 



RIGHT FEMUR. FRONT 

 VIEW. 



trochanter 7, external condyle; 

 8, internal condyle; 9, external 

 epicondyle ; 10, groove for the 

 popliteal tendon; 11, internal 

 epicondyle. 



