THE TRAPEZIUS GROUP. 



211 



entire trapezius group by lifting a single large flap of skin. This 

 flap, however, may be divided afterward so that one or two of the 

 muscles may be covered while the other is under examination. In 

 so doing, the skin is more easily divided ento-ectad (from within 

 outward). 



FIG. 66. THE ECTAL SKELETAL MUSCLES OP THE LEFT 

 SHOULDER AND NECK, AFTER REMOVAL OF THE DER- 

 MAL MUSCLES. (The left side of the head is shown in 

 outline below in order to facilitate the student's recogni- 

 tion of the regions in this his first systematic dissection.) 



