72 



Mr. C. S. Sherrington. 



[Mar. 17, 



jtfo. of the root excited. Movement produced. 



9th Subthoracic . . Adduction of root of tail, which is drawn 



toward the side stimulated. 

 10th . . . . Proximal half of tail drawn toward side 



stimulated. 



No. of root excited. Muscle thrown into action. 



1st Subthoracic . . Quadratus lumborum, psoas parvus, external 

 oblique, internal oblique, transversalis. 



2nd ,, .. Quadratus lumborum, psoas magnus, cremaster, 

 external oblique, internal oblique, trans- 

 versalis. 



3rd „ . . Psoas, cremaster, iliacus, external oblique, in- 

 ternal oblique (lower part only), trans- 

 versalis, pectineus, adductor longus, sarto- 

 rius (upper part especially), vastus internus, 

 and obdurator externus slightly. 



4th „ . . Psoas, iliacus, pectineus, adductor longus, sar- 

 torius (lower part especially), vastus in- 

 ternus (> vastus externus), crureus, ob- 

 turator, rectus femoris, vastus externus, 

 gracilis. 



5th „ . . Gracilis, vastus externus ( > vastus internus), 

 rectus femoris, vastus internus, crureus, 

 adductor magnus, semimembranosus, tibi- 

 alis anticus, tensor vaginae femoris, per- 

 oneus longus (occasionally strongly), flexor 

 longus hallucis (slight), flexor longus digi- 

 torum (slight), tibialis posticus (slight), 

 extensor longus digitorum, extensor proprius 

 hallucis. 



6th ,, . . Tibialis anticus, extensor longus digitorum. 



extensor hallucis, peroneus longus, peroneus 

 brevis, extensor brevis digitorum, gastro- 

 cnemius external head (> internal head), 

 internal head, tibialis posticus, flexor longus 

 digitorum, flexor longus hallucis, semimem- 

 branosus ( > semitendinosus), semitendino- 

 sus, biceps (slight, chiefly in deep portion), 

 adductor hallucis, flexor brevis digitorum, 

 adductor hallucis (slight), adductor minimi 

 digiti, soleus (slight), plantaris, popliteus, 

 gluteus medius, quadratus femoris. 



7th „ . . Tibialis anticus, extensor longus digitorum, 

 extensor proprius hallucis, peroneus longus, 



