DISSECTING MANUAL. 



to synovial membrane; its plantar aspect presents a fibrous 

 plate. The lateral ligaments (ligamenta collateralia) are well- 

 defined bands like those of the metatarso-phalangeal joints. 

 A synovial membrane lines each capsule. [314] 



THIGH AND BUTTOCK. 



FASCIA. 



Superficial Fascia. This is continuous with that of the ab- 

 domen, back, perineum, and leg; it is thick and fatty in the 

 buttock. In the groin it separates into two layers, superficial 

 and deep, between which are the femoral and inguinal glands, 

 small arteries, and internal saphenous vein and tributaries. 

 The superficial fatty layer is continuous with a similar layer on 

 the perineum and front of the abdomen. The deep membran- 

 ous layer is attached above to the inner half of Poupart's liga- 

 ment and the fascia lata below the outer half of the ligament, 

 and internally to the pubic arch, while below Scarpa's triangle 

 it blends with the superficial layer. [355] 



Deep Fascia or Fascia Lata. This is attached above to the 

 iliac crest, great sacro-sciatic ligament, ischium, pubic arch, pu- 

 bic symphysis and crest, and Poupart's ligament; and below 

 to the patella, tuberosities of the tibia, and head of the fibula, 

 joining the deep fascia of the leg. On the buttock it is thick in 

 front but thinner behind, and splits at the upper border of the 

 Gluteus maximus to enclose this muscle. On the front of the 

 thigh it is thick, pierced by vessels and nerves, and presents 

 the saphenous opening. Internally it is thinner. At the knee, 

 with the Vasti tendons, it forms the lateral patellar ligaments, 

 which are attached to the borders of the patella and the tibial 

 tuberosities. Externally it forms a broad layer (ilio-tibial 

 band) running from the iliac crest to the knee-joint cap- 

 sule and outer tibial tuberosity ; a prolongation of this layer, 

 which runs upward under the Tensor fasciae femoris, sends a 



[270] 



