THE NECK, ANTERIOR. 127 



Insertion. Into the jugular process of the occipital bone. 

 Nerve Supply. First cervical nerve. 

 Action. To flex the head laterally. 



Long-us Colli. 



The vertical portion. 



Origin. From the sides of the bodies of the sixth and 

 seventh cervical, and the first, second, and third dorsal 

 vertebrae. 



Insertion. Into the sides of the bodies of the second, 

 third, and fourth cervical vertebrae. 



The upper oblique portion. 



Origin. From the anterior tubercles of the transverse 

 processes of the third, fourth, and fifth cervical vertebrae. 



Insertion. Into the tubercle on the anterior arch of the 

 atlas. 



The lower oblique portion. 



Origin. From the sides of the bodies of the first, 

 second, and third dorsal vertebrae. 



Insertion. Into the anterior tubercles of the transverse 

 processes of the fifth and sixth cervical vertebrae. 



Nerve Supply. Filaments from the anterior divisions of 

 the cervical nerves. 



Action. To flex the neck. If one acts alone, to flex 

 the neck forward and laterally, and slightly rotate it. 



The further dissection of the pharynx and the dissection 

 of the larynx and nasal fossae will be omitted until the back 

 of the neck has been completed. 



See page 141 for the directions and descriptions. 



