Muscles of the Leg:. 



327 



M. psoas major 



M. fiuadratus lumboruia 



M. psoas minor 



Crista iliaca 



Fascia iliaca 



Spina iliaca 

 anterior superior 



Fascia illopectinea 



Superficial layer of 



the fascia lata 



^reflectedj 



Fascia lata - 



Fossa ; 



illopectinea i 



A. and v. 

 femoralis 



Margo falciformis 

 (cornu inferius) 



Ligamenturo 



ongitudinale 



anterius 



Corpus vertebrae 

 lumbalis IV 



- Promontorhim 



Symphysis ossium pubis 



Fascia pectiuea 



372. Fascia iliaca dextra. [Text see p. 325 and 330.] 



M. psoas major (see Figs. 314, 315, 333, 370, 371 and 376). Form: round, oblong- 

 triangular. Position: posterior wall of the peritoneal cavity, directly in fi'ont of the mm. 

 quadratus luraborum and iliacus, just lateral from the lumbar vertebrae and the apertura pelvis 

 superior. Origin: lateral surfaces of the bodies and intervertebral discs of the r2th thoracic 

 to the 5th lumbar vertebra as well as the procc. transversi of the lumbar vertebrae. In- 

 sertion: converging downward, forward and lateralward and with a narrow tendon to the 

 trochanter minor femoris. Action: it bends the lumbar spine lateralward, flexes the thigh, 

 and rotates it somewhat outward dr, when the latter is fixed, it bends the pelvis and the 

 body forward. Innervation; rami musculares plexus lumbalis. 



M. iliacus (see also Figs. 314, 370. 371 and 376). Form: flat, triangular. Position: 

 in the fossa iliaca and anterior to the hip-joint, covered medianward by the m. psoas major. 

 Origin: fossa iliaca, spina iliaca anterior superior and inferior; the latter origin (see Fig. 377) 

 is also designated as the third head of the m. iliopsoas. Insertion: the fibers converge 

 downward in front of the hip-joint (buisa iliopectinea see Fig. 377), then backward in common 

 with the m. psoas major to the trochanter minor femoris (bursa iliaca subtendinea see Fig. 378). 

 Action: it flexes the thigh and rotates it sniue-nhat outward or, when this is fixed, it draws 

 the pelvis, together with the body, forward. Innervation: rami musculares n. femoralis. 



