Question

What structure or structures appear black on a CT axial section through the thorax?

A) Lungs
B) Bones
C) Blood Vessels
D) Muscles

Answer 1

The lungs appear black on a CT axial section through the thorax.

Step-by-step explanation:

The structure or structures that appear black on a CT axial section through the thorax are the A) Lungs.

The lungs appear black on a CT scan because they are filled with air, which absorbs X-rays, resulting in less radiation being detected by the scanner. This contrast makes the lungs appear dark or black on the image.