112 



ARTICULATIONS OR JOINTS 



Angular Movement. This is seen only in the joints 

 of long bones, whereby the angle between the two bones 

 is either increased or diminished. It is expressed in 



Fia. 55 



The left shoulder-joint, scapuloclavicular articulations, and proper ligaments 

 of the scapula. (Gray.) 



four ways, as follows: bending or flexion to bend the 

 arm or leg forward or backward, etc. ; straightening or 

 extension to straighten the legs and thighs as in stand- 



