1892.] On the Nerve-roots of the Lwnbo'sacral Plexus. 75 



Eoot. Movement. 



of the three latter), pectineus, adductor 

 longus, sartorius. 



4th Subthoracic . . Psoas magnus, iliacas, pectineus, the adductor 

 longus, gracilis (probably the rest of the 

 adductor mass), sartorius, vastus internus, 

 vastus externus, crureus, rectus fern, (slight), 

 obturator externus. 



5th „ . . Gracilis, adductor longus (slight), tensor 

 vaginae femoris, rectus f em oris, vastus in- 

 ternus, vastus externus, crureus, tibialis an- 

 ticus, peroneus longus, semimembranosus 

 (these latter only slightly) , extensor hallucis 

 (very slight). 



6th „ Part of adductor magnus, tibialis anticus, ex- 



tensor longus digitorum, extensor hallucis, 

 peroneus longus, peroneus brevis, short (in- 

 trinsic) extensors of the digits, abductor 

 minimi digiti, gastrocnemius (both heads, but 

 slight), popliteus, tibialis posticus, flexor 

 longus digitorum, long flexor of the hallux, 

 soleus, semimembranosus, plantaris, semi- 

 tendinosus, biceps. 



7th ,, . . Adductor magnus, semitendinosus, semimem- 

 branosus, tibialis anticus, extensor longus 

 digitorum, extensor propr. hallucis, peroneus 

 brevis, peroneus longus, plantaris, popliteus, 

 gastrocnemius (both outer and inner heads), 

 tibialis posticus, flexor longus digitorum, 

 soleus, long flexor of the hallux, short ex- 

 tensor (intrinsic extensor) of the digits and 

 hallux, short and accessory flexors (in- 

 trinsic flexor) of the digits and hallux, ab- 

 ductor minimi digiti, the abductor hallucis, 

 the adductor hallucis, large part of pyri- 

 f oralis, interossei and lumbricales, obturator 

 internus, quad. fern, and two gemelli. 

 8th ,, . . Biceps, semimembranosus, semitendinosus y 

 gluteus medius, gastrocnemius (both heads), 

 soleus, tibialis posticus, flexor longus digi- 

 torum, abductor hallucis, abductor natum, 

 short and accessory flexor of the digits and 

 hallux, adductor of the hallux, interossei 

 and lumbricales, sphincter ani, sphincter 

 vasfina?, small part of pyriformis, obtu- 



