INTRODUCTORY. 13 



and funicular, as the lateral and interosseous ; or yellow, 

 all peripheric. 



Synovial capsula. — A serous membrane secreting 

 tlie synovia. 



Motions. — Seven : simple gliding, flexion, extension, 

 abduction, adduction, rotation and circumduction. 



Classification. — Enarthrosis, with all motions, as 

 the coxo-femoral joint ; angular ginglimus, or perfect 

 hinoje, with flexion and extension, as the tibio-tarsal 

 joint ; condyloid or imperfect hinge, with flexion, 

 extension and rotation, as the femoro-tibial ; trochoid 

 or lateral ginglymus, with rotation, as the axoido-atloid ; 

 arthrodia, with simple gliding, as the carpo metacarpal. 



Nomenclature. — Made from the bony pieces which 

 form them. 



Synarthrodia! Joint. — Articular surfaces, irregu- 

 lar, denticulated, and on the borders or faces of flat 

 bones. 



Means of union. — Interosseous ligaments and 

 periosteum. 



Motions, — Very limited in young, and absent in 

 old subjects. 



Classification. — Sutura vera, or dentata, as the 

 pieces of frontal bone ; sutura squammosa, as the 

 parieto-temporal joint ; sutura harmonia, as the occi- 

 pito-temporal joint ; schindylesis, mortise-like, as the 



