CUTANEOUS AREAS OF THE BODY 



1021 



Fig. 776.— Diagram showing Areas of Distriution of Cutaneous Nerves. 



Head : — 



j^ED— Ophthalmic division of trigeminus. White— maxillary division of trigeminus. 

 Blue— mandibular division of trigeminus. Dotted area— Posterior prmiary divisions 

 of cervical nerves. Obhque 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 posterior femoral 

 cutaneous (small sciatic) indicates that the nerve comes from the posterior as well as 

 from the anterior parts of the anterior primary divisions of the sacral nerves, but it 

 supplies a flexor area. The area of the inferior medial cluneal nerve is left uncoloured, 

 because its true nature is uncertain. Dotted shading— posterior primary divisions. 

 The numbers and initial letters refer to the respective spinal nerves from which the 

 nerves are derived. 



Supraorbital 



Great occipital 

 Small occipital 



Smallest occipital 

 Great auricular 



Posterior primary divisions 

 of cervical nerves 



Ophthalmic division of trigeminus - - 



Mandibular division of trigeminus 



Maxillary division of trigeminus 



Great auricular 



Cutaneous colli, 2, 3 C 



Supra -clavicular' 



Axillary '-*■• 



Lateral cutaneous nerves- 



Anterior cutaneous nerves 



Medial brachial cutaneous 



and intercosto- 



brachial, 1,2 T 



Posterior brachial 



cutaneous 



Medial antibrachial 

 cutaneous 

 Musculo-cutaneous 

 (Lateral antibrachial; 



Lateral femoral cutaneous" ""/"f 



Genito-femoral 



Superficial 



radial, 6 C 



Ilio-inguinial, i L 



Median, 6,7, C. i T 



Ulnar, i T 



Anterior femoral 

 cutaneous 



Common peroneal — 

 Saphenous — 



Superficial peroneal 



Deep peroneal- 

 Medial plantar 



Supra-clavicular, 3, 4 C 



Axillary, 5, 6 C 



Lateral branches of 



thoracic nerves 

 Posterior brachial 



cutaneous 



Medial and intercosto- 

 brachial cutaneous 

 Medial antibrachial 



cutaneous 

 Dorsal antibrachial 



cutaneous, 6, 7, 8 C 

 Medial antibrachial 



cutaneous 

 Superior clunial 

 Lateral cutaneous of 



ilio-hypogastric 

 Musculo-cutaneous, 5, 6 C 

 Middle clunial 



Inferior medial 

 clunial 2, 3 S 



Ulnar, 8 C 

 Superficial 



radial, 6, 7 C 

 Area supplied by 



superficial radial 



and ulnar 

 :.-r;U;;.-; Median, 6,7, 8 C, 1 T 



Lateral femoral cutaneous 

 Posterior femoral cutaneous 



Anterior femoral cutaneous 

 and obturator 



Common peroneal, 5 L, i, 2 S 

 Saphenous, 3, 4 L 



Sural, I, 2 S 



Medial calcaneal of tibial, i, 2 S 

 ... Lateral plantar, i, 2 S 



„ Medial plantar, 4, s L, 1 S 



