MUSCLES OF BACK 



91 



The Muscles Of the Back can again be divided into transverse 

 -and longitudinal. The transverse muscles are those which 

 connect the shoulder girdle with the spinal column, and the 

 longitudinal ones those that cause extension of the back and 



Complexus 



Cervicahs Ascendens,._ 



Splenius 



Serratus Posticus Superior 



..Vertebral Aponeu- 

 rosis 



Musculus Accessorius .-J, 



Longissimus Dorsi 



Ilio-costalis,. 



.. Serratus Posticu 

 Inferior 



FIG. 35. MUSCLES OF THE BACK. 



the movements of the pelvis (as in locomotion), which corre- 

 spond with those of the spinal column. The movements of 

 the head on the spinal column will be considered in another 

 section. 



The muscles are arranged in four layers. Starting with the 

 most superficial they are 



