THE UPPER EXTREMITIES. 



179 



to the styloid process. The head of the radius is felt 

 just below the external condyle and often makes a dim- 

 ple in the muscles of the forearm. The rest of its 



Tuberosity. 



Arterial foramina. -.=:--- - 



Radius. ... 



Interosseous space. 



.- .Ulna. 



FIG. 72. Bones of the right forearm in a position of supination. (Toldt.) 



upper half is concealed with muscles, but the lower half 

 is easily felt as there are only tendons over it. The 

 styloid process is felt externally. Normally that of the 

 radius is a little lower than that of the ulna, so that 



