Fig. 469b. — DiA(iK.\M showing the Ark.vs of Distribution of Citaneous Nerves. 



Head: — 



Ked — First division of fifth. AVhite — .Second division of fifth. Blue — Third divi.-^ion of fifth. Dark- 

 area— Posterior j>rimary divisions of cervical nerves. Oblique and transverse shading — Branches of 

 cervical ]>lexus. 



Body and Limbs: — 



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

 Two colors in one area indicate that the area is sunplied by two sets of nerves, and it should be under- 

 stood that wherever two nerve areas approach each other they overlap. The dotted blue area of small 

 sciatic indicates that the nerve comes from the posterior part of anterior primary divisions of sacral 

 nerves, but it supplies a flexor area. The area of the ])erforating cutaneous nerve i.s left uneohmred, 

 because its true nature is uncertain. Dark shading — Posterior primary divisions. The numbers and 

 initial letters refer to the nerve roots from which the nerves are derived. 



Ut DIVISION OF 5th 



Sd DIVISION OF 5th ~ 



M DIVISION OF 5th - 



GREA T A URICULA R - 



2,3 C, SUPERFICIAL CERVICAL - 



SUPERFICIAL 

 DESCENDING CERV. 



CIRCUMFLEX 

 LA TERA L CUTA NEO US — 

 NER VES 

 ANTERIOR CUTANE- " 

 OUS NERVES 



LESSER IXTERyAL Cl'TASE- 

 Ors AXD IXTERCOSTO-BU- — ' 



MERAL, I, 2 D 

 VPPER EXTERNAL CUTANE- ... 

 OUS OF ML'SCULO-SPIRAL 



INTERNAL CUTANEOUS - 

 MUSCULO-CUTANEOUS " 



EXTERNAL 

 CUTANEOUS " 



SUPRAORBITAL 



GREAT OCCIPITAL 

 SMALL OCCIPITAL 

 SMALLEST OCCIPITAL 

 GREA T A URICULAR 



POSTERIOR PRIMARY DIVI- 

 SIONS OF CERVICAL NERVES 



SUPERFICIAL DE- 

 SCENDING CER VI- 

 CAL, S, U C 



GENITO-CRURAL 



RADIAL, 6 C 

 ILIO-ISGVIXAL, I L 

 JfEDIAX, 6,7, S C. ID 



ULNAR, 1 D 



INTERNAL CUTANEOUS 

 MIDDLE CUTANEOUS 



EXTERNAL POPLITEAL - 

 INTERNAL SAPHENOUS - 



CIRCUMFLEX, 5,6 C 



UPPER EXTERNAL CUTAXE- 

 OrS OF iirSliLOSPIRAL 



IX TER COS TO- HI HERA L A XI> 

 LESSER JXT. CUTAXEOrS 



JXTERXAL CUTANEOUS OF 

 MUSCULO-SPIRAL 



LOWER EXTERXAL OF 

 MUSCULO-SPIRAL, 6, 7, a C 



IXTERXAL CUTAXEOUS 

 POSTERIOR PRIMARY 



LUMBAR 

 LATERAL CUTAXEOUS OF 



ILIOHYPOGASTRIC 

 MUSCULO-CUTANEOUS. S, 6 C 



POSTERIOR PRIM. SACRAL 

 PER FOR A TINC, 

 CUTANEOUS OF 2d 

 Aa\I) 3d SACRAL 



-- ULNAR, S C 

 RADIAL, S, 7 C 



>.._ AREA SUPPLIED BY 

 RADIAL AND ULNAR 

 NER VES 



MEDIAN. 6, 7,8C, 

 ID 



MI :sCJ'L <)- (n- TA NEO I S . 



EXTERNAL SAPHENOCS , 



ANTERIOR TIIilAL •■ 

 INTERNAL PL A NT A K .. 



EXTERNAL CUTANEOUS 

 SMALL SCIATIC 



INTERNA L CUTA NEO US A ND 

 OBTURATOR 



EXTERNAL POPLITEA L,5L,1,2S 

 . INTERNAL SAPHENOUS, S, U L 



. EXTERNAL SAPHENOUS, J, S S 



CA L CA NEO-PLA NT A R {Post- 

 tibial), 1,2 S 



EXTERNAL PLANTAR, 1, 2 S 

 INTERNAL PLANTAR, ',, 5 L,l s' 



824 



