The general term for any procedure in which a scope is used to visually inspect a canal or body cavity ________.

Body Cavity

A hollow or space within the body that contains and protects internal organs, such as the chest or abdominal cavities.

Canal

A tubular passage or channel in the body for the conveyance of fluids or air, such as the ear canal.

Scope

The extent, range, or breadth of something, especially a project, research, discussion, or activity, outlining its limitations and objectives.