Which of the following diagnostic tests is useful in detecting aneurysms in the brain? 

An AP elbow projection obtained with the elbow internally rotated demonstrates

1. the radial tuberosity in profile. 2. an open capitulum–radial joint space. 3. more than 0.25 inch (0.6 cm) of radial head and ulnar superimposition. 4. less than 0.25 inch (0.6 cm) of radial head and ulnar superimposition. a. 1 and 3 only b. 2 and 3 only c. 2 and 4 only d. 1, 2, and 3 only

The examination position pictured here is the ________ position.