GLUTEAL REGION 



451 



SYNONYMS OP THE MUSCLES OP THE HAUNCH {continued). 



NAMES USED IN THE TEXT. 



HR. PERCIVALLS NOMENCLATURE. 



Adductor longus 



Gracilis Gracilis . . 



rectiiicus Pectineus 



f Adductor longus 

 ■ \^ ,, magnus 

 ,, brevis .... Adductor brevis 



Pyriformis Pyriformis . . 



Obturator externns . . . Obturator externus 

 ,, iutcrnus ... ,, iuternus 



Gemini Gemini ... 



CHAUVEAU S NAMES. 



Court adducteur. 

 Pectine. 



► Graud adducteur de la cuisse. 



Petit adducteur de la cuisse. 

 Pyramidal. 

 Obturateur externa. 

 ,, interne. 



Jumcaux du bassin. 



GLUTEAL REGION 



Gluteus externus forms the top part of the haunch. Origin — from the 

 Spine of the third sacral bone and lower tubercle on the antero-inferior 

 spinous process of the ilium. Insertion — to the anterior part of the 

 troclianter minor externus. 



Gluteus maximus is situated on the middle part of the haunch. Origin 

 — from the ligamentous structure of the longissimus dorsi, from the spine 

 of the second and third sacral bones, the sacro-sciatic ligament, the top of the 

 supero-posterior spine, the antero-inferior spine, crista, and dorsal surface of 

 the ilium. Insertion — to the posterior part of the trochanter major externus 

 and superior part of the tubercle. 



Gluteus internus is situated under the maximus. Origin — from the 

 posterior half of the dorsum ilii and a small portion of the ischium. In- 

 sertion — to the upper part of the tubercle at the head of the femur. The 

 action of the glutei is, to extend the femur on the pelvis, and to assist in 

 the acts of kicking and rearing. They are the main propellers of the body. 



Tensor vagina femoris is placed on the antero-external part of the 

 haunch. Origin — from the outer part of the lower tubercle on the antero- 

 inferior spinous process of the ilium. Insertion — to the superior part of 

 the patella. Action — to assist in extending the thigh. 



EXTERNAL -ILIO FEMORAL REGION 



Triceps abductor femoris occupies the posteroexternal side of the haunch 

 and thigh. Origin — from the third and fourth spines of the sacrum, and 

 from the anterior part of the tuberosity of the ischium. Insertion — by 

 three attachments. First, to the posterior part of the femur and lateral 

 part of the patella. Secondly, to the lateral part of the ligament extending 

 from the patella to the spinous ridge on the tibia. Thirdly, to the ridge 

 on the tibia and fascia, which binds down the flexors and extensors. Action 

 — to rotate the leg and to turn the hock outwards. 



Biceps rotator tibialis is situated on the postero-external side of the 

 haunch. Origin — from the last bone of the sacrum, the two anterior coccy- 

 geal bones, and posterior part of the tuberosity of the ischium. Insertion — 

 to the antero-internal and mesian part of the tibia and fascia of the \Qg 

 Action — to rotate the leg. 



