304 



THE MUSCLES AND FASCIA 



is thin, quadrilateral in form, and about an inch and a half in length; it ar/.sr.v 

 from the outer two-thirds of the superior curved line of the occipital hone, and from 

 the mastoid portion of the temporal hone. Its fibres of origin are tendinous, 

 but they are soon succeeded by muscle fibres, and ascend in a parallel direction 

 . to terminate in a tendinous aponeurosis. The frontal portion, the frontalis muscle 

 (m.frontalis), is thin, of a quadrilateral form, and intimately adherent to the super- 



v 



CORRUQATOR SUPERC 



DILATATOR NARI8 ANTERIOR 



DILATATOR NARIS POSTERIOR 



COMPRESSOR NARIUM MINOR. 



DEPRESSOR ALAE NASI. 



LEVATOH MENT 



FIG. 289. Muscles of the head, face, and neck. 



ficial fascia. It is broader, its fibres are longer, and their structures paler than the 

 occipital portion. It has no bony attachments. Its internal fibres are continuous 

 with those of the Pyramidalis nasi. Its middle fibres become blended with the 

 Corrugator supercilii and Orbicularis palpebrarum; and the outer fibres are also 

 blended with the latter muscle over the external angular process. From these 

 attachments the' fibres are directed upward, and join the aponeurosis in front of 



