200 



THE MUSCLES. 



This depression is called the iliopectineal fossa; it contains the 

 femoral vein and artery and saphenous nerve imbedded in fat 

 (Fig. 127). The medial edge of the adductor longus is in 

 relation with the integument; the lateral edge with the pec- 



FiG. 92. — Second Layer of Muscles on the Medial Side of the Thigh. 

 a, M. tensor fascise lata;; a', fascia lata; b, M. rectus feiiioris; c, M. vastus mcdi- 

 alis; </, M. iliopsoas (cut); t", M. pectincus; /", M. adductor longus; g, M. adductor 

 femoris; h, //, M. semimembranosus; /, M. semitendinosus (/', its tendon); y, medial 

 head of M. gastrocnemius; /', M. jiopliteus; /, M. flexor longus digitorum. I, patellar 

 ligament; 2, ligamentuni collaterale tibiale. 



tineus (Fig. 92, c). Inner or caudal surface with the adductor 

 femoris (Fig. 92, g-). 



Action. — Adductor of the thigh. 



M. pectineus (Fig. 92, c). — A flat band of fibres closely 

 united with the adductor longus (/), of which it appears to be 

 a lateral continuation. 



Origin by fleshy fibres from the lateral one-fourth of the 

 cranial border of the pubis. The muscle passes over the 

 smooth outer surface of the pubis between its origin area anc 



