Final answer:
Radiographic anatomy is a new subspecialty of gross anatomy that uses imaging techniques like X-rays and CT scans to study internal structures non-invasively.
Step-by-step explanation:
Radiographic anatomy is a new subspecialty of gross anatomy as new advances, such as computed tomography and spiral scans, have emerged. This field utilizes radiographic imaging techniques, such as X-rays and CT scans, to study the internal structures of the body. These imaging techniques allow anatomists to visualize and analyze the body's structures non-invasively, providing valuable information for medical diagnoses and surgical planning.