FACE AND FRONTAL REGION OF HEAD n 



broadens as it descends, and it is inserted into the ala of the 

 nose and into the upper part of the orbicularis oris. 



The quadratus labii superioris raises the upper lip, and its 



Frontalis 



Orbicularis oculi 



M. quadratus labii superioris, 



angular head 



M. nasalis, pars transversa 



M. quadratus labii superioris, 

 infra-orbital head 



M. zygomaticus 

 M. caninus 

 Risorius 



Orbicularis oris 



Orbicularis oris 



M. quadratus labii inferioris 

 M. triangularis 



Platysma 



FIG. 2. The Facial Muscles. 



angular head elevates the ala of the nose. It is supplied 

 by the facial nerve. 



Musculus Zygomaticus. The zygomaticus (O.T. zygo- 

 maticus major) is a comparatively long, slender muscular 

 band which springs from the facial surface of the zygomatic 

 bone, under cover of the lower lateral fibres of the orbicularis 



