DISSECTING MANUAL. 



brane lines each compartment. An accessory band (internal 

 lateral ligament) lies internal to, but separate from, the capsule, 

 attached above to the spine of the great wing of the sphenoid, 

 and below to the lower and hinder (lingula) border of the in- 

 ferior dental foramen of the mandible. [267] 



Non-articular Cranial Ligaments. There are the following: 



Stylo-mandibular. A specialized portion of deep cervical 

 fascia running from the anterior aspect of the tip of the styloid 

 process to the posterior border of the angle of the mandible, 

 between the Masseter and Internal pterygoid. [269] 



Pterygo-spinous. -A membrane extending from the upper 

 part of the posterior free margin of the external pterygoid 

 plate, backward to the spine of the sphenoid; there is an 

 interval between its upper border and the floor of the 

 skull. [269] 



Stylo-hyoid. A downward continuation of the styloid proc- 

 ess, attached to the lesser cornu of the hyoid. [269] 



Articulations between the Cranium and Spine. The joints 

 are diarthrodial, between the biconvex occipital condyles and 

 the biconcave superior articular facets of the atlas ; each has 

 a thin and complete capsular ligament ; a synovial membrane 

 lines each capsule. The supplementary ligaments are as fol- 

 lows: [266] 



Anterior Occipito-atloid. A thin membrane attached below 

 to the anterior arch of the atlas, and above to the anterior half 

 of the margin of the foramen magnum ; it is continuous later- 

 ally with the capsule, and presents mesially a thickened band 

 running from the anterior tubercle of the atlas to the basi- 

 occiput. [266] 



Posterior Occipito-atloid. A thin membrane attached below 

 to the posterior arch of the atlas, and above to the posterior 

 half of the margin of the foramen magnum; laterally it is 

 continuous with the capsule. [266] 



Posterior Occipito-axoid. A prolongation of the posterior 

 common ligament, running from the posterior surface of the 



[20] 



