392 



THE MUSCLES AND FASCIA. 



set together, and extend throughout the whole thickness of the skin. It also con- 

 tains a number of sebaceous glands. 



The superficial fascia in the cranial region is a firm, dense, fibro-fatty layer, 

 intimately adherent to the integument, and to the Occipito-frontalis and its tendi- 



CORRUQATOR 



DILATATOR NARIS POSTERIOR 



COMPRESSOR MARIUM MINOR 



DEPRESSOR ALXE NASI. 



LEVATOR MENTI. 



FIG. 269. Muscles of the head, face, and neck. 



nous aponeurosis ; it is continuous, behind, with the superficial fascia at the back 

 part of the neck ; and, laterally, is continued over the temporal fascia. It con- 

 tains between its layers the superficial vessels and nerves and much granular fat. 

 The Occipito-frontalis (Fig. 269) is a broad musculo-fibrous layer, which covers 

 the whole of one side of the vertex of the skull, from the occiput to the eyebrow. 

 It consists of two muscular slips, separated by an intervening tendinous aponeurosis. 

 The occipital portion, thin, quadrilateral in form, and about an inch and a half in 

 length, arises from the outer two-thirds of the superior curved line of the occipital 

 bone, and from the mastoid portion of the temporal. Its fibres of origin are 

 tendinous, but they soon become muscular, and ascend in a parallel direction to 



