A radiograph is produced using 70 kVp and 10 mAs. If mAs is increased to 20, how much kVp is required to maintain exposure?

A PA wrist projection with accurate positioning demonstrates

1. an open radioulnar articulation. 2. the radial styloid in profile. 3. the long axes of the third metacarpal aligned with the midforearm. 4. open second through fifth MC joint spaces. a. 1 and 2 only b. 1, 2, and 3 only c. 3 and 4 only d. 1, 2, 3, and 4

The humerus is an example of a(n) ________ bone.

A. long B. short C. flat D. sesamoid E. irregular