114 



ARTICULATIONS OR JOINTS 



abduction of the fingers or toes, the second finger of the 

 hand and second toe are taken as the middle line and 

 not the middle of the body. 



FIG. 57 



Right hip-joint, from in front. (Spalteholz.) 



Circumduction. This is the limited degree of motion 

 which takes place between the head of a bone and its 

 articular cavity, when the extremity is swung in such 

 a manner that the sides and extremities of the limb 

 circumscribe a conical space around an imaginary 



