820 THE NERVOUS SYSTEM 



Table Showing Relations of Lumbar and Sackal Nerves to Branches of 

 Lumbar and Sacral Plexuses. — Continued 



Nekve R(jots. Nerves. 



5 L 1 and 2 8 ^ Inferior gluteal 



■ ' ' " ' 1 Xerve to obturator internus 



1 and 2 S Nerve to pyriforniis 



o 1 .-) o ( Perforating cutaneous 



2 and o b J ^, „ .7. 



\ Small sciatic 



2, 3, and 4 S Pudic 



Table Showing 

 Xerve Roots. 



2 and 3 L. . . 



2, 3, and 4 L. . 



3 and 4 L. . . 



3, 4, and 5 L. . 



4, 5 L., and IS. . . 



Relations of Muscles of Lower Extremity to Nerves of 

 Lumbar and Sacral Plexuses 



5 L. and 1 S. . 



5 L., 1 and 2 S. 



1 and 2 S. . . 



1, 2, and 3 S. 



4, 5 L., and IS. 



Muscles. 

 Ilio-psoas 

 Sartorius 

 Pectineus 

 Adductor longus 

 CTracilis 



Adductor brevis 

 Quadriceps extensor 

 Ol^turator externus 

 Adductor niagnus 

 Gluteus medius 



., minimus 

 Tensor fasc. femoris 

 Semimembranosus 

 Plantaris 

 Popliteus 



Quadratus femoris 

 Inferior gemellus 



f Flex. long, digit. 

 Tibialis posticus 

 Flexor brev. digit. 

 ,, ,, hallucis 



I Abductor ,, 



I First lumbrical 

 Superior gemellus 

 Obturator internus 

 Gluteus maximus 



I Semitendinosus 



I Soleus 



L Flex. long, hallucis 



f Pyriforniis 

 Gastrocnemius 

 Flexor accessorius 

 Abd. min. digiti 

 Plantar interossei 

 Dorsal , , 



Add. hallucis trans. 

 ,, ,, obliq. 



Long head of bicejis 



^ Ext. long. hall. 

 . , digit, 

 brev. ,, 

 Tibialis anticus 

 Peroneus tertius 

 ,, longus 



[ , , brevis 



Nerves. 

 Anterior crural 



Obturator 



Anterior crural 

 Obturator 



,, and gt. sciatic 



Superior gluteal 



Gt. sciatic 

 Internal popliteal 



Nerve to quad. fem. 



" . " . . " 

 Posterior tibial 



?5 11 



Internal plantar 



" " . 



Nerve to obt. int. 



." " 



Inferior gluteal 



Gt. sciatic 



Int. poplit. and j^ost. tib. 



Posterior tibial 



Int. popliteal 

 External plantar 



Gt. sciatic 

 Anterior tibial 



Musculo-cutaneous 



