THE LOWER LIMB 495 



(4) lower fibres of the quadratus femoris, (5) adductor magnus, (6) gluteus 

 maximus, and (7) vastus extemus. 



Relation of Muscles along the Linea Aspera of the Femur. — Commencing at 

 the outer lip of the linea aspera, and passing inwards as far as the inner Up, 

 the relation of muscles is as follows: (i) vastus externus and crureus in one 

 hne; (2) short head of biceps femoris; (3) adductor magnus; (4) adductor 

 longus; and (5) vastus internus. 



Borsae at Hip-Joint. — The bursse in the vicinity of the hip-joint 



are as follows : 



Psoas. Trochanteric {3). Sabtrochanterie. 



The psoas bursa is situated between the tendon of the psoas 

 muscle and the anterior part of the capsule of the hip-joint, between 

 the ilio-femoral and pubo-capsular accessory hgaments, this portion 

 of the capsule being weak. The bursa may be continuous with the 

 synovial membrane of the hip- joint through an opening in the 

 capsule which is sometimes present (one in ten). 



The trochanteric bursae are three in number, and are associated 

 with the great trochanter and the three gluteal muscles. The bursa 

 of the gluteus maximus, which is of large size and multilocular, is 

 situated between the fascial insertion of that muscle and the outer 

 surface of the great trochanter of the femur. The bursa of the 

 gluteus medius is situated between the tendon of insertion of that 

 muscle and the outer surface of the great trochanter above, and in 

 front of, the insertion. The bursa of the gluteus minimus is situated 

 between the tendon of insertion of that muscle and the anterior 

 surface of the great trochanter above the insertion. 



The subtrochanteric bursa is situated directly below the bursa of 

 the gluteus maximus, and is also associated with that muscle. It 

 Ues between the insertion of the muscle into the gluteal ridge of 

 the femur and the tendinous vastus externus muscle as it skirts 

 the base of the great trochanter. 



The trochanteric and subtrochanteric bursae have no communica- 

 tion with the synovial cavity of the hip- joint. 



i 



