420 



TTIK ANATO:\IY OF THE ITORSE 



THE HIP JOINT 



The coxo-ff.moral auticulatiox, ok iiih joint, is formod by tlie cotyloid 

 cavitv of the os innominatum receiving tlie globular head of the femur. 

 The articular sui-faces of each are clotlied with cartilage, excepting at the 

 iKttch in the former, and a rough surface on the internal side of the latter, 

 to which the round ligament is attached. 



The Lir.AMKNTS oi this articulation are the pubio-femoral, cotyloid, trans 

 verse, round or ligamentum teres, and capsular. 



The pnhio-femoral is situated above the cotyloid ligament, but takes a 

 course under tlie transverse ligament. It arises from tlie edge of tlio 



Fio. 04.— PiiOFiLK View of Left IIip Joint. 



1. Ilia" portion of os innoniinatum. 



2. Isi'hiuni. 



3. Femur. 



4. Trochanter major cxtcrnus. 



Cotyloid ligament. 

 G. Cai'Sillar ligament covering the 

 cotyloid ligament. 



acetabulum, and from the notch in the head of the os femoris, in company 

 with the ligamentum teres, and is inserted at the symphysis pubis, where 

 it meets its fellow on the opposite side. 



The edije of tlie acetabulum is deepened by a layer of fibro-cartilage, called 

 the cotyloid ligament. This bridges across the notch, and forms a complete 

 circle. 



At the notch in the edge of the acetabulum, where the fibres of the 

 cotyloid ligament cross one another, and are continued from side to side, 

 so as to render the circumference complete, some fibres are added distinct 

 from the fibro-cartilage, and being both looser and broader, have been 

 named the trausverse ligament. 



The iufrr-articufar round ligament, or I'ujamentum teres, is compo.sed of 

 three fasciculi of fibres, forming a thick, dense body, attached by one 

 extremity, which is round, to the pit in the head of the os femoris, and 



