How far above the work area in the darkroom should the safelight be located?

An internally rotated AP oblique knee projection demonstrates the tibia partially superimposed over the fibular head. How should the positioning setup be adjusted to obtain and optimal pro-jection?

a. Increase the degree of internal rotation. b. Decrease the degree of internal rotation. c. Adjust the central ray angulation 5 degrees caudally. d. Fully extend the knee.

There are more than 100 types of _______________, which is a general term meaning joint inflammation. 

Fill in the blank(s) with the appropriate word(s).