Usually used when a post is focused less on the characters and more on accurate, overly detailed, and realistic anatomy; as if you could put it in an anatomy text book and easily label the most of the technical names for various anatomical structures. As a general rule this tag is more focused on internal anatomy than external, but it is sometimes used for other things like how to guides on drawing genitalia.

Examples of use:

• The inside of a stomach, showing detailed rugae and a tightly closed sphincter used to hold in stomach acid.
• A gory split open abdomen complete with accurately hung intestines, lungs, and the bottom aspect of the liver.
• A guide on drawing a whale penis which emphasizes how the baculum (penis bone) functions.

Frequently used with internal and vore.

See also:

• anatomy
• how-to
• model_sheet
• tagging_guidelines_illustrated
• the_more_you_know