154 PRACTICAL ANATOMY. 



ARTICULATIONS OF THE HEAD WITH THE VERTEBRAL COLUMN. 



Occipito-atloid. 



BONES : Occipital and atlas. 

 LIGAMENTS: 

 Two ANTERIOR. 



Origin Basilar process. 



Insertion Anterior tubercle and anterior arch of 



atlas. 

 ONE POSTERIOR. 



Origin Posterior margin of foramen magnum. 

 Insertion Posterior arch of atlas. 

 Two LATERAL. 



Origin Jugular process of occipital. 

 Insertion Transverse process of atlas. 

 Two CAPSULAR. 



Origin Circumference of condyles. 

 Insertion Circumference of articular surface of atlas. 

 SYNOVIAL MEMBRANES: One in each joint. 

 NERVES: Suboccipital and filament from spinal accessory. 



Occipito-axoid. 



The axis and occipital bones are not in contact; the 

 ligaments simply pass between them. 

 LIGAMENTS: 

 OCCIPITO-AXOID. 



Origin Odontoid process, posterior surface. 

 Insertion In front of the anterior margin of the 



foramen magnum. 

 THREE ODONTOID. 



Origin Apex of odontoid process. 



Insertion Margin of foramen magnum by three 



slips. 



NERVE: Suboccipital. 

 ARTERIES: From the vertebral. 



