The prefix 'angi-' is related to what aspect of anatomy?

The prefix 'angi-' refers specifically to vessels, particularly blood vessels. In medical terminology, it is often used to describe anything related to blood vessels, such as in the terms "angiogram" (an imaging test that uses X-rays to view blood vessels) and "angioplasty" (a procedure to widen narrowed or obstructed blood vessels). This prefix stems from the Greek word "angeion," which means vessel. Therefore, in the context of anatomy, 'angi-' is primarily associated with blood flow through the vascular system, making blood flow the aspect that is most accurately linked to this prefix.