THE MUSCULAR SYSTEM 



279 



to the marsupial pouch of didelphians. On the sides of the abdomen, 

 the quadratus liunbonmi muscle extends from the last rib to the 



-^'STERNOCLEIDOMASTOID. 

 GENI0HY0ID7-''=''^!i^^^a^^Bi^aHS^<J^^^^'^aP^-SPLENIUS CAPITIS. 

 STYLOHYOIDt 

 LONGUS CAPITISr-^ 

 THYROHYOID- 



.-LEVATOR SCAPULAE 

 -SCALENUS ANTERIOR. 



SCALENUS ANTERIOR-. 

 STERNOTHYROIDt- 



SERRATUS ANTERIOR^ 

 SUPERIOR PART. 



SERRATUS ANTERIOR- si^- 

 MIDDLE PART. 



-OMOHYOID. 

 TRAPEZIUS. 

 -CLAVICLE 



PECTORALIS MINOR 



.7DELTOID. 



PECTORALIS MAJORr.r' 



PECTORALIS / 

 MINOR. 



SERRATUS x«sr VA 



ANTERIORi=^^-- -" 

 INFERIOR 



INTERNAL'- 

 OBLIQUE . " 



Fig. 232. — Deeper trunk and neck muscles of man, viewed from the left side. (Redrawn 



after Sobotta.) 



ilium. Its function is to depress the thorax and bend the backbone 

 backwards. 



