THE HIP-JOINT 



281 



the deep part of the hgament at the ischium, while those superficial at the ischium 

 are deep at the pubis. It thus completes the rim of the acetabulum. 



The glenoid lip (cotyloid fibro-cartilage) (figs. 309 and 310) is a yellowish- 

 white structure, which deepens the acetabulum by surmounting its margin. It 



Fig. 311. — Portions of Ischium and Pubis, showing the Acetabular Notch and the 



LiGAMENTUM TeRES ATTACHED OUTSIDE THE ACETABULUM. 



Transverse ligament 



—Glenoid lip 



Transverse ligament 



Ligamentum teres at- 

 tached to ischium out- 

 side the acetabulum 



varies in strength and thickness, but is stronger at its iliac and ischial portions 

 than elsewhere. Its base is broad and fixed to the bony rim as well as to the 

 articular cartilage of the acetabulum on the inner, and the periosteum on the 

 outer, side of it, and blends inseparably with the transverse ligament which 

 supports it over the acetabular notch. 



Fig. 312. — The Upper Extremity of the Femur (Posterior View), to show the Rela- 

 tion OF THE Articular Capsule of the Hip-joint (in red) to the Epiphysial Lines. 



Its free margin is thin; on section it is>omewhat lunated, having its outer surface convex and 

 its articular face concave and very smooth in adaptation to the head of the bone, which it 

 tightly embraces a httle beyond its greatest circumference. It somewhat contracts the aper- 

 ture of the acetabulum, and retains the head of the femur within its grasp after division of the 

 muscles and capsular ligament. It is covered on both aspects by synovial membrane. 



