POLL-EVIL 111 



the atlas inserts to the parmastoid process 

 nuchal (occipital) crest and the mastoid pro- 

 cess. 



Obliquus Capitis Posterior (Posticus) . This 

 muscle lies upon the dorsolateral aspect of the 

 atlas and axis. It is broad, flat, thick and 

 fleshy. Its origin is from the side of the spine 

 and the posterior articular process of the axis. 

 It inserts to the dorsal surface of the wing of 

 the atlas. Its function is chiefly to rotate the 

 atlas, and by this means, the head. 



Rectus Capitis Dorsalis Major, This mus- 

 cle originates from the edge of the spinous 

 process of the axis and inserts to the occipital 

 bone, below the tendon of insertion of the com- 

 plexus. It is in contact with the ligamentum 

 nuchse. 



Rectus Capitis Dorsalis Minor. This is 2 

 small muscle which lies under the rectus cap- 

 itis dorsalis major. It originates from the 

 dorsal surface of the atlas and inserts to the 

 occipital bone beneath the point of insertion of 

 the last named muscle. It is lateral to the 

 cordiform portion of the ligamentum nuch^. 



Rectus Capit us Ventralis (Auticus) Major, 

 This, the long flexor muscle of the head has its 

 origin posteriorly from the transverse process- 

 es of the third, fourth and fifth cervical verte- 



