OF THE DIFFERENT MUSCLES. 159 



and from the fascia liimborum, and is inserted into the tro- 

 chanter and fascia. 



GLUTEUS MAX1MUS. 



Origin. — From the spinous and transverse processes of 

 the two or three last lumbar vertebras, from those of the two 

 or three upper sacral, and from the fascia lumborum ; from 

 the crest of the ileum, and from its dorsal and posterior spi- 

 nous processes, and from the sacro-sciatic ligament. From 

 these origins its fascicula run in a convergent manner towards 

 the trochanter major. 



Insertion. — Into the sides of the trochanter major. 



GLUTEUS INTERNUS. 



Origin. — From the dorsum of the ileum. 



Insertion. — Into the anterior and less projecting part of 

 the trochanter major. 



Use. — The gluteal muscles are extensors of the os femoris. 

 In rearing and kicking they are in violent action. 



PELVIC REGION. 



These muscles, mostly small ones, run from the pelvis to 

 the upper end of the os femoris : they are called — 



Pyriformis, Obturator internus, 



Obturator externus, Gemini. 



POSTERIOR FEMORAL REGION. 



These muscles are found upon the outer and back part of 

 the haunch. 



BICEPS. 



A large fleshy mass forming the outermost part of the 

 quarter. 



Origin. — From the lateral and posterior parts of the sa- 

 crum, and from several of the ossa coccygis ; from the great 



