DISTRIBUTION OF THE CVTAMKOL'X 



991 



Tin: CUTANEOUS AUKAS or TIII. I'IXVA 



The upper tWO-thirdfl of the OUter surface Of the pinna arc supplied by tin- auricnlo- 

 temporal branch ol' t he t liinl division of I lie I ritreminus. anil t he lower I hird l>y I wiirs 

 of the great auricular nerve. The lower I hive- fourths of the cranial surface of the 

 pinna are supplied by the u r reat auricular nerve, and the upper fourth by the small 

 occipital nerve. The posterior surface of the external auditory meatu.s receives fila- 

 ments from the auricular branch of the vairus. 



THE CuTA\i:ot s Am: \s OK TMK \KI-K 



The skin over the anterior part of the neck is supplied by the superficial cervical 

 branch of the cervical plexus, which contains filaments of the second and third 

 cervical nerves.and. in the lower part of its extent, by the anterior supra-clavicular 

 nerves (snprasternal branches) which convey twigs of the third and fourth cervical 



IMG 709. DIAGRAM OP THE CUTAXKOI * AI:I:\S OF THE SIDE OF THE BODY AND PART OF 



THE LIMU. (After Head.) 



nerves (fisj. 708). The lateral part of the neck receives filaments from the second, 

 third, and fourth cervical nerves by way of the streat auricular, small occipital, 

 and middle supraclavicular (supra-clavicular) branches of the cervical plexus, and 

 posteriorly the skin of the neck is supplied by the small occipital nerve and by 

 the internal branches of the posterior primary divisions of the cervical nerves from 

 the second to the sixth inclusive (fig. 710). 



THE OYTAXEors Am-:v> OF TIII: TRUNK 



The skin over the ventral aspect of the trunk as far down as the third rib is 

 supplied by the anterior supra-clavicular (sum-asternal) and middle supra-clavicular 

 (supra-clavicular) branches of the cervical plexus, which contain filaments from the 

 third and fourth cervical nerves (fi<r. 710). I-Yom the third rib to the lower part of the 

 abdominal wall it receives the anterior cutaneous branches, and the anterior divisions 



