Question

39 fill in the blank 1 point in addition to being perpendicular to the ir during the dorsal decubitus projection, the central ray must also be directed type your answer

Explanation:

In medical imaging for dorsal decubitus projection, in addition to being perpendicular to the image - receptor (IR), the central ray is typically directed horizontally to visualize air - fluid levels or other anatomical details properly.

Answer:

horizontally