A CT scanner is a combination of which two machines?

The correct answer is the combination of a computer and an x-ray machine. A CT scanner, or computed tomography scanner, utilizes the principles of x-ray imaging to create detailed cross-sectional images of the body. The x-ray machine generates the x-ray beams, which are then rotated around the patient to capture multiple images from different angles.

The computer component is essential as it processes the data collected from these multiple x-ray images and reconstructs them into a comprehensive 3D representation of the scanned area. This technological synergy allows physicians to see internal structures with greater clarity than traditional x-ray images alone.

This combination of technology significantly enhances diagnostic capabilities, making it easier for healthcare providers to detect conditions such as tumors, infections, and internal injuries. The other options listed do not accurately describe the functioning or components of a CT scanner since they involve machines not used in conjunction within the CT imaging context.