142 ORIGIN, INSERTION, AND USE 



COMPLEXUS MINOR. 



Origin. — From the spinous process of the vertebra dentata. 

 Insertion. — Along with the oomplexus major. 

 Use. — To assist that muscle in erecting the head. 



RECTUS CAPITIS POSTICUS MAJOR. ■ 



Origin. — From the spine of the vertebra dentata. 

 Insertion. — Into the occipital bone. 

 Use. — To pull the head backwards. 



RECTUS CAPITIS POSTIBUS MINOR. 



Origin. — From the body of the atlas. 



Insertion. — Along with the last-described muscle. 



Use. — To raise the head. 



OBLIQUUS CAPITIS SUPERIOR. 



Origin. — From the superior border of the transverse pro- 

 cess of the atlas. 



Insertion. — Into a ridge extending from the occipital 

 tubercle. 



Use. — When both act, to assist in pulling up the head ; 

 singly contracting, they will turn it to one side. 



OBLIQUUS CAPITIS INFERIOR. 



Origin. — From the spine of the vertebra dentata. 



Insertion. — Into the superior parts of the transverse pro- 

 cess and body of the atlas. 



Use. — When both contract, the atlas, and the head with 

 it, will be raised. It also gives a rotary motion to the head. 



SPINALIS COLLI. 



Origin. — From the anterior oblique processes of the 

 curved vertebras, and from that of the first dorsal, by tendi- 

 nous and fleshy slips. 



Insertion. — Into the spines of the cervical vertebras, with 

 the exception of the atlas. * 



Use. — To elevate the head, and flex the^ieck backwards. 



