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ARTICULATIONS. 



/ Sutura vera (true) 

 articulate by in- 

 dented borders. 



Synarthrosis, or im- 

 movable joint. Sur- 

 faces separated by 

 fibrous membrane, 

 without any inter- 

 vening synovial ca- 

 vity, and immova 

 bly connected with 

 each other. 



As in joints of cra- 

 nium and face (ex- 

 cept lower jaw). 



Sutura. Arti- 

 culation by pro- 

 cesses and inden-/ 

 tations interlock- 

 ed together. 



Sutura notha 

 (false) articulate by 

 'rough surfaces. 



A mphiarthrosis, 

 Mixed Articulation. 



Diarthrosis, 

 Movable Joint. 



Dentata, having 

 tooth-like processes. 



As in interparie- 

 tal suture. 



Serrata, having 

 serrated edges, like 

 the teeth of a saw. 



As in interfrontal 

 suture. 



Limbosa, having 

 bevelled margins, 

 and clentated pro- 

 cesses. 



As in fronto-pa- 

 rietal suture. 



Squamosa, formed 

 by thin bevelled 

 margins overlap- 

 ping each other. 



As in Squamo- 

 parietal suture. 



Harmonia, formed 

 by the apposition of 

 contiguous rough 

 surfaces. 



As in intermaxil- 

 lary suture. 



Schindylesis. Articulation formed by the reception of a 

 thin plate of bone into a fissure of another. 



As in articulation of rostrum of sphenoid with vomer. 



Gomphosis. Articulation formed by the insertion of a 

 conical process into a socket. 



The teeth. 



1. Surfaces connected by fibro-cartilage, not separated 

 by synovial membrane, and having limited motion. As 

 in joints between bodies of vertebras. 



2. Surfaces covered by fibro-cartilage ; lined by a partial 

 synovial membrane. As in sacro-iliac and pubic sym- 

 physes. 



Arthrodia. Gliding joint; articulations by plane sur- 

 faces, which glide upon each other. As in sterno- and 

 acromio-clavicular articulations. 



Enarthrosis. Ball-and-socket joint; capable of motion 

 in all directions. Articulations by a globular head received 

 into a cup-like cavity. As in hip and shoulder-joints. 



Q-inglymus. Hinge-joint; motion limited to two direc- 

 tions, forwards and backwards. Articular surfaces fitted 

 together so as to permit of movement in one plane. As in 

 the elbow, ankle, and knee. 



Diarthrosis rotatorius or Lateral Gtinglymus. Articulation 

 by a pivot process turning within a ring, or ring around 

 a pivot. As in superior radio-ulnar articulation, and atlo- 

 axoid joint. 



