Question

Which projection and position demonstrates the coronoid process of the ulna without superimposition?

Select one:
a.AP projection; anatomic position
b.AP oblique projection; 45-degree medial rotation position
c.AP oblique projection; 45-degree lateral rotation position
d.Lateral projection; lateral position

Answer 1

The AP oblique projection with a 45-degree medial rotation demonstrates the coronoid process of the ulna without superimposition, providing a clear view of this anatomy on x-rays.

The answer is b. AP oblique projection; 45-degree medial rotation position

Step-by-step explanation:

The question which asks "Which projection and position demonstrates the coronoid process of the ulna without superimposition?" is focused on the specific type of radiographic projection that best visualizes the anatomy of the elbow.

The answer is b. AP oblique projection; 45-degree medial rotation position. In this position, the elbow is rotated medially (inward) by 45 degrees during an AP (anteroposterior) oblique projection, thus providing a clear view of the coronoid process without the overlapping of the radius and ulna which typically form an X-shape in other positions.