Joints of the Lower Extremity. 



201 



Os ilium 



Labrum gletioidale 



Zona orbicularis 



Trochanter major 



Spina ischiadica 



^^ Crista inter- 

 trochanterica 



250. Right hip joint, articulatio coxae, 



from behind. 



(The superficial layer of the capsule and the ligamentum ischiocapsulare have been removed.) 



Articulatio coxae (continued) (see also Fig. 252). Its capsule is strengthened in the 

 depth by the zona orbicularis (see also Fig. 252). This band of fibres, covered over comple- 

 tely by the other ligaments, but connected with them, is strongest and most distinct above, 

 behind and below; it surrounds the neck of the femur like a ring and is connected above 

 with tbe bone below the spina iliaca anterior inferior. It extends therefore, essentially like 

 a loop, from this point, downward in front of the neck, then behind the same and thence, 

 back again, upward to its starting point; its lateral margin is formed of fibres which run 

 purely circularly. 



