THE HIP BONE. 



231 



is subdivided by an oblique ridge, called the ilio-pectineal line (linea arcuata), 

 which passes forwards and downwards, from the most prominent point of the 

 auricular surface towards the medial side of the ilio-pectineal eminence, which 

 is placed just above and in front of the acetabulum and marks the fusion of the 



CREST OF THE ILIUM 







ILIUM 



TUBEROSITY 

 FOR 



SACRO-ILIAC 

 LIGAMENTS 



SUPERIOR RAMUS 



OF OS PUBIS 



OBTURATOR GROOVE 



PUBIC 

 TUBERCLE 



CREST 

 OF OS PUBIS 



SYMPHYSIS 

 ossis PUBIS 



LESSER SCIATIC NOTCH 



ISCHIUM 



TUBER ISCHIADICUM 

 (ISCHIAL TUBEROSITY) 



INFERIOR RAMUS OF os PUBIS RAMUS OF ISCHIUM 



FIG. 231. THE RIGHT HIP BONE (Medial Aspect). 



ilium with the os pubis. Above this the bone forms the shallow iliac fossa, 

 from the floor of which the iliacus muscle arises, whilst leading from the 

 fossa, below and in front, there is a shallow furrow, passing over the superior 

 acetabular margin, between the anterior inferior iliac spine on the lateral side an 

 the ilio-pectineal eminence medially, for the lodgment of the tendinous and fleshy 

 part of the ilio-psoas muscle. If held up to the light the floor of the deepest part 



15 o 



