MUSCLES OF THE HIP AND THIGH. 



93 



from the trochanter minor to the linea aspera. Action, to flex the thigh 



and rotate it outwards. Nerves, obturator, accessory obturator, and anterior 



crural. 

 Adductor Longus, 13 /hwj the front of the pubes, into the middle third of 



the linea aspera. Action, to adduct the thigh and flex it. Nerve, obturator. 

 Adductor Brevis, from the descending ramus of the pubes, into the upper 



part of the linea aspera. Action, to adduct and flex the thigh. Nerve, 



obturator. 



Adductor Magnus, 14 from the rami of the pubes and ischium, and the outer 

 margin and under surface of the tuberosity of the ischium, into the rough 

 line leading from the great trochanter to the linea aspera, the whole length 

 of the linea aspera, and by a tendon into the tubercle above the inner con- 



FlG. 48. 



dyle of the femur. Action, to adduct the thigh 

 and rotate it outwards. Nerves, obturator and 

 great sciatic. This muscle is pierced by 4 aper- 

 tures for the 3 superior perforating and the profunda 

 arteries, and about the lower one-third of its 

 insertion an angular interval is left therein, the 

 lower opening of Hunter's canal, for the passage 

 of the femoral vessels into the popliteal space. 



Gluteus Maximus/ from the superior curved line 



of the ilium, the crest behind it, the last piece of 



the sacrum, the side of the coccyx and the great 



and posterior sacro-sciatic ligaments, into the 



fascia lata and the rough line leading from the 



great trochanter to the linea aspera. Action, to 



extend and abduct the thigh and rotate it out- 

 wards, also to maintain the trunk erect. Nerves, 



inferior gluteal and a branch from the sacral 



plexus. 



Gluteus Medius,^ from the ilium between the su- 

 perior and middle curved lines, the crest between 



them and the fascia of the part. into the oblique 



lines on the great trochanter. Action, its posterior 



fibres rotate the thigh outwards, its anterior fibres 



rotate inwards. It also abducts the thigh and 



draws it forwards, and assists to maintain the trunk 



erect. Nerve, superior gluteal. 

 Gluteus Minimus, 8 from the ilium between the middle and inferior curved 



lines, and the margin of the great sacro-sciatic notch, into the anteriol 



