(fiirect head), 

 ref/eefect tifo.4. 



7. M a.nt?Sump)iuiii) ligament] 

 7 esia.1 

 <*dof 

 Rte&t, 



104. Outer view of the acetabular and ischio-pubic regions. A. is a region on the bone in front of the position of 

 Quadratus femoris which is in relation with the tendon of Obturator externus and some loose fibro-fatty tissue that permits 

 changes in place of the tendon with movement of the joint. B. is a sloping surface of bone which supports Pectineus but 

 does not give origin to it ; the surface extends out to the ilio-pectineal eminence where the fascia covering the Pectineus 

 (pubic portion of fascia lata) reaches the bone at a. The front of the eminence is roughened by fibres belonging to the pubo- 

 femoral group of ligaments. These are separated from the ilio-femoral set by an interval, apparent on the bone and marking 

 the limit of the secondarily added pubic area of articular surface (see Fig. 106), where the synovial cavity is protruded as the 

 sub-Psoas bursa ; this is seen in the smaller figure. The Psoas lies on the bursa and the surface C. D. is covered by Gluteus 

 minimus, which arises above the dotted line ; below D. the muscle lies on the reflected head of the Rectus and the capsule of 

 the joint. O. and I.C. are branches of the obturator and internal circumflex arteries anastomosing round Obturator externus 

 and giving twigs through the cotyloid notch into the cotyloid fossa and so into the lig. teres, which is attached round the 

 margins of the fossa and to the transverse ligament that extends between the lips of the notch. A", marks an ill-defined 

 depression on the margin, which indicates the spot where the origin of Adductor magnus passes from the outer side of the 

 pubic ramus to the lower aspect of the ischial tuberosity ; it therefore also marks the hinder limit of origin of Gracilis. 



