An AP Scapular Projection with Accurate Positioning Demonstrates

Multiple Choice

An AP scapular projection with accurate positioning demonstrates
1) almost superimposed anterior and posterior glenoid fossa margins.
2) the vertebral scapular border without thoracic cavity superimposition.
3) the humeral shaft at a 90-degree angle with the body.
4) the supraspinatus fossa and superior scapular angle without clavicular superimposition.

A) 1 and 3 only
B) 1, 3, and 4 only
C) 1 and 2 only
D) 3 and 4 only