THE MUSCLES OF THE HEAD AND NECK 135 



The Anterior Neck Muscles. The platysma is a thin, 

 pale muscle, extending over the front and sides of the 

 neck, the lower region of the face, and as low as the 



FIG. 65 



Muscles of the neck and boundaries of the triangles. (Gray.) 



upper aspect of the chest, just below the clavicles. It 

 is just beneath the skin, invested by the superficial 

 fascia, and above the deep cervical fascia of the neck. 

 There are two such muscles. 



