170 



THE SKELETON 



The posterior gluteal line commences at the crest about two inches from the posterior 

 superior iliac spine and curves downward to the upper margin of the greater sciatic notch. 

 The space included between this ridge and the crest affords origin at its upper part to the 

 gluteus maxirnus, and at its lower part, to a few fibres of the pirifonnis, while the intermediate 

 portion is smooth and free from muscular attachment. The anterior gluteal line begins at 

 the crest, one inch behind its anterior superior iliac spine, and curves across the dorsum to 

 terminate near the lower end of the superior line, at the upper margin of the greater sciatic 

 notch. The surface of bone between this line and the crest is for the origin of the gluteus 

 medius. The inferior gluteal line commences at the notch immediately below the anterior 



{y^< f\ 



Fig. 205. 



Insertion of external oblique 

 Internal oblique 



Tensor fasicae latae 



-The Left Coxal or Hip-bone. (Lateral view.) 

 Posterior limit of external oblique 



Latissimus dorsi 

 Crest of ilium 



Sartorius 



Rectus femoris 

 Inferior iliac notch 



Articular portion of 

 acetabulum 



Capsule 

 Synovial membrane 



Posterior gluteal 

 line 



Posterior 



superior iliac 

 spine 



Piriformis 



Descending ramus 

 pubis 



Gracilis 



—Posterior inferior 

 iliac spine 



Greater sciatic (ilio-sci- 

 atic) notch 



Gemellus superior 

 Spine of ischium 



Lesser sciatic notch 

 Gemellus inferior 



Obturator notch 

 Semimembranosus 



Quadratus femoris 



Semitendinosus and 

 biceps 



Adductor magnus 



Ramus of ischium Obturator externus 



superior iliac i^])'\m' and tcriniiiatcs posteriorly at the front part of the greater sciatic notch- 

 The Hi)a(;e between tlie anterior and inferior gluteal lines, with the excej)tion of a small area 

 adjacent to the anterior end of the spine for the leiisor fascia; lata:, gives origin to the gluteus 

 minimus. B(!tween the inferior gluteal line and the margin of the acetal)ulum the surface 

 afTord.s attachment to the; cai)suie of the hip-joint , and on a rough area (sometimes a depression) 

 toward its anterior part, to the reflected tendon of the rectus femoris. 



The internal surface presents in front a smooth concave portion termed the 

 iliac fossa, whicli hjdfres the iliacus muscle. The fossa is limited below by linea 

 arcuata, the ihac ])ortion of the terminal (ilio-pectineal) line. This is a rounded 

 border separating the fossa from a ])ortion of the internal surface below the line, 

 which gives attachment to the ohlnvdlor intcrnus and enters into the formation of 

 the minor (true) pelvis. Behind the iliac fossa the bone is uneven and presents 



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