78 ANATOMY AND PHYSIOLOGY FOR NURSES 



The sartorius, the longest muscle in the body, is a flat, 

 narrow, ribbon-like muscle that arises from the anterior 

 superior spinous process of the ilium, passing down the 



FIG. 40. FIG. 41. FIG. 42. 



FlG. 40. Muscles of the inner side of thigh and interior of pelvis : i, 

 Iliacus; 2, psoas magnus; 3, obturator internus; 4, pyriformis; 5, erector 

 spinas; 6, gluteus maximus ; 7, sartorius; 8, adductor longus; 9, gracilis; 

 10, adductor magnus ; n, semimembranosus ; 12, semitendinosus ; 13, rectus 

 femoris ; 14, vastus internus. 



FlG. 41. Superficial muscles of the leg from inner side: i, Vastus in- 

 ternus; 2, sartorius; 3, gracilis; 4, semitendinosus; 5, semimembranosus; 



6, inner head of gastrocnemius ; 7, soleus; 8, tendon of plantaris ; 9, tendon 

 of tibialis posticus ; 10, flexor longus digitorum ; n, flexor longus hallucis ; 

 12, tibialis anticus ; 13, abductor hallucis. 



FlG. 42. Superficial muscles of front of thigh: i, Insertion of external 

 oblique into iliac crest; 2, aponeurosis of external oblique ; 3, external ab- 

 dominal ring; 4, gluteus medius; 5, tensor vaginae femoris; 6, sartorius; 



7, iliopsoas; 8, pectineus ; 9, adductor longus; 10, gracilis; n, adductor 

 magnus; 12, vastus externus ; 13, rectus femoris; 14, vastus internus; 15, 

 biceps flexor cruris. 



inner side of the thigh vertically to the inner side of the 

 knee. Insertion, into the inner surface of the shaft of the 

 tibia. Action, flexes the leg upon the thigh, as well as 



