PLATE CXVII. 



FRONTAL SINUS 



PRINCIPES CERVK.S 

 A BRANCH OF OCC.PITAL 



ASCENDING PHARYNGEAL 



PROFUNDA CERVi:iS 

 STERNO-MAS'OiD 



CRICOID CARTILAGE 



TRACHEA 



FIRST RIB 



SUP. INTERCOSTAL 

 1ST AORTIC INTERCObML 

 SECOND RIB. 



Til E [NTERNAL ( ' VROTID A.RTERY. 



2. SI 



