126 ANATOMY IN A NUTSHELL. 



its extremities, and there is often a marked external projection in its anterior 

 third. On the cresl are external and internal lips and an intermediate space. 



The anterior superior spine is the projection at the anterior extremity. 

 below which is a concavity, the lesser iliac notch, and below this notch is the 

 anterior Inferior spine. The posterior superior spine is the projection at the 

 posterior extremity of the crest, and is separated by a small notch from the 

 posterior inferior spine below which i- the great sciatic notch. 



To the external lip from before backward (Plate XLIII) are attached (1) 

 Tensor vaginae femoris, (2) External oblique of abdomen, (3) Latissimus dorsi, 

 P Gluteus maximus, (5) The fascia lata throughout the entire length of the 

 lip. 



To the internal lip from before backward (Plate XLIV.) are attached (1) 

 Transversalis abdominalis, (2) Quadratus lumborum, (3) Erector spina'. (4) 

 The [liacus muscle and iliac fascia to that part of this lip corresponding to the 

 interna] iliac fossa. 



To the intermediate space i> attached the Internal oblique of the abdomen. 

 The anterior superior spine has attached 1 1 ) T< nsor vaginae femoris externally. 

 (2) Sartorius in front. (3) Poupart's ligament internally. 



The straight head of the Rectus femoris arises from the anterior inferior 

 spine of the Qii m. 



Tin external surface or dorsum ilii, has three curved lines called the gluteal 

 !iii' -. The superior or POSTERIOR gluteal link begins two inches in front of 

 the post< rior superior spine and curves down and forward to the hack part of 

 the ilio-sciatic notch. The middle gluteal link begins in front about an inch 

 and a half b< hind the ant< rior superior spine, and arches hack and down to the 

 upper part of die notch. The inferior gluteal link, not so well marked. 

 begins jusl above the anterior inferior spin< . and passes hack to the fore pari of 

 the notch. 



The Gluteus maximus is attach* d bi hind th< superior gluteal line to a semi- 

 lunararea which is rough above. The falciform space between the superior and 

 middle curved lines and the iliac cresl is occupied by the Gluteus medius. The 

 Gluteus minimus i< between the middle and inferior curved lines. The re- 

 flected head of the Rectus femoris is attached just abov< tin cotyloid cavity to 

 .•mi oblong mark. 



The iliac fossa or venter ilii is the ant( ro-sup< nor pari of the internal sur- 

 face and is larger than the postero-inferior part. It ,<dv< s attachment to the 

 I liacus muscle exc< pi at its ant< ro-inf< rior portion. The vi nter is smooth and 

 concave. The ilio-pt ctineal line s< parat< s this pai t from the true pelvis. 



To the inner side of the anterior inf< rior -pine is a shallow groove, the great 

 iliac notch, which lodges the Qio-psoas muscle as it passes under Poupart's lig- 

 am< nt ; the inni r boundary i f the groove is the ili< -pectineal eminence, making 

 the junction of the pubis ami ilium. The p< stero-inferior part is again divided, 

 mi below upward (1) a smooth curved surface in the true pelvis, 

 giving attachment in part to a portion of the < Obturator interims, separated from 

 the iliac fossa by the iliac portion of the i!io-p< ctineal line: (2) the auricular 

 surface, for articulation with the sacrum; (3) depr( ssion for the posterior -aero- 



