58 EQUINE ANATOMY. 



Action. — Extends head and neck or draws them to side. 

 Nerve. — Superficial cervical. 



GREAT COMPLEXUS. 



Origin ; Ante7'ior Po?'tion. — Transverse processes of first and 

 second dorsal vertebrae, and articular tubercles of cervical 

 vertebrse. 



Postei'ior Portion. — From spinous process of first dorsal, and 

 transverse process of first four or five dorsal vertebrae. 



hisertion. — Occipital tuberosity. 



Action. — Extensor of head. 



Nerve. — Deep cervical. 



SMALL COMPLEXUS. 



Origin. — Same as anterior portion of former. 

 Insertion. — Mastoid process of temporal. 

 Action. — Extends head and inclines it to one side. 

 Nerve. — Deep cervical. 



TRANSVERSE SPINOUS OF NECK. 



Oi'igin. — To five last articular tubercles of cervical spine. 

 Insertion. — Second, third, fourth, fifth and sixth cervical 

 spinous processes. 



Action. — Extensor and flexor of cervical region. 

 Nerve. — Deep cervical. 



INTER-TRANSVERSE OF NECK. 



Origin. — Six short muscles between transverse processes of 

 cervical spine, except between first and second. 

 Action. — Incline neck to same side. 

 Nerve. — Superficial cervical. 



GREAT OBLIQUE OF HEAD. 



Origin. — Spinous process of axis. 

 hisertion. — Transverse process of atlas. 

 Action. — Rotates atlas on odontoid process. 

 Nerve. — Second cervical. 



SMALL OBLIQUE. 



Origin. — Transverse process of atlas. 



Insertiofi. — Styloid process, external surface of occipital and 

 mastoid crest. 



