How will well-expanded, air-filled lungs appear on a chest radiograph?

Question

Quizplus · Accepted Answer

The normal structures that are visualized on a chest radiograph are distinguishable because of differences in the absorption of the X-ray beam by the organs and tissues within the thoracic cavity. Bone and metallic orthopedic hardware appear bright white because of greater X-ray absorption and less exposure of the image receptor. In contrast, air has little beam absorption, and therefore well-expanded lungs appear relatively black. Soft tissue organs and fluid usually appear as shades of gray in between the white bones and black lungs.

How Will Well-Expanded, Air-Filled Lungs Appear on a Chest Radiograph