A synovial hinge joint formed by an articulation of the distal and middle or middle and proximal phalanges of the fingers

A synapse is ________-shaped

a. pear b. root c. knob d. oval

All of the following factors affect the shift rule-of-thumb except:

A. Thickness of patient/anatomical part B. Average anatomical geometry C. Source-to-image distance D. Relative location of part of interest within the body