992 



THE NERVOUS SYSTEM 



FIG. 710. DIAGRAM SHOWING AREAS OF DISTRIBUTION OF CUTANEOUS NERVES. . 



HEAD: 



|| e( j First division of trigemimis. White Second division of trigeminus. Blue Third 

 division of trigeminus. Dark area Posterior primary divisions of cervical nerves. 

 Oblique and transverse shading Branches of cervical plexus. 



BODY AND LIMBS: 



Red Anterior branches of anterior primary divisions. Blue Posterior branches of anterior 

 primary divisions. Two colours in one area indicate that the area is supplied by two sets 

 of nerves, and it should be remembered that wherever two nerve areas approach each 

 other they overlap. The dotted blue area of the small sciatic indicates that the nerve 

 comes from the posterior us well as from the anterior parts of the anterior primary di- 

 visions of the sacral nerves, but it supplies a flexor area. The area of the perforating 

 cutaneous nerve is left uncoloured, because its true nature is uncertain. Dark shading 

 Posterior primary divisions. The numbers and initial letters refer to the respective 

 spinal nerves from which the nerves are derived. 



lit DIVISION OF TRIGEMIM'S 



$d DIVISION OF TBKlE.VINUti 



Zd DIVISION OF TRIGEMINUS -' 



GREAT AURICULAR " "V 

 CUTANEOUS COLLI, 2, S C - 



SUPRA-CLA VICULAR 



AXILLARY 

 LATERAL CUTANEOUS 



NER VES 

 ANTERIOR CUTANEOUS 



NER VES 



MEDIAL BRACHIAL 

 CUTANEOUS AND 

 INTERCOSTO- 

 BRACHIAL. 1, 

 POSTERIOR BRACHIAL 

 CUTANEOUS 



MEDIAL ANTIBRA- 

 CHIAL CUTANEOUS 



MUSCULO-CUTANEOUS 



LATERAL FEMORAL 

 CUTANEOUS 



GENITO-FEMORA L 



SUPERFICIAL _ 



RADIAL, n C 

 ILIO-IXGVIXAL. I L 

 HEDIAX, I.I.SC.t T - 

 ULITAR. I T - 



ANTERIOR FEMORAL f 

 CUTANEOUS 



SUPRAOKBITAL 



1:1: i-:.i. T OCCIPITAL 



SMALL (K'l'Il'/TAL 



SMALLEST <><'< II'ITAL 

 GRJ-JA T A UR1CLLAR 



POSTERIOR PRIMARY DIVISIONS 

 OF CERVICAL NERVES 



SUPRA-CLA VICULAR, 



S,ltC 



AXILLARY, 5, 6 C 



LATERAL BRANCHES 

 OF THORACIC KER VES 



POSTERIOR XRAI'HIAL 

 CUTAXKOfS 



, A\l> IXTERVOSTO- 

 BRACHIAL CVTAXKdl'S 



MEIiIAL ANTIBRA- 

 C1IIAL CUTANEOUS 



VOIISAL AXTIBRAt'HIAL 

 Cl'TANEOUS. 6.7,8 C 



HKIIIAL AliTIBRACHIAL 

 CUTAXfOUS 



SI-PEKIOR rir.VfAL 



LATERAL fl'TAKKOl'S OF 

 ILIO-HYPOGASTBIC 



.VrX'TLO-Cl'TAXEOCS, S, 6 C 



MIDDLE CLI'XIAL 



MEIIIAL IXFER1OR 

 CLUXIAL I. 3 S 



~L'LNAR. 8C 



' 



COMMON PERONEAL 

 S A PHENOL'S 



SUPERFICIAL PERONEAL 

 SURAL 



DEEP PERONEA L 

 MEDIAL PLANTAR 



... 



RADIAL. 6.7 C 

 AHK1 xri'I'I.IED BY 

 SIPKHflCIAL 

 RADIAL AXD ULNAE 



, 6, 7, 8 C, 

 1 1 

 LATERAL FEMORAL 



CTTANEOUS 

 POSTERIOR FKMOBAL 

 CUTANEOUS 



ANTERIOR FEMORAL CUTAN- 

 EOUS AXD OBTURATOR 



- COMMON PERONEAL, 5 L, 1, 3 S 

 " SAPHENOUS,S,I,L 



- SURAL, 1,21, 



- MEDIAL CALCANEAL OF 

 TIBIAL, 1. : > 



LA TFT! A L PLANTAR, l,tS 

 MEDIAL PLANTAR, /,, S L, 1 S 



