ANSWER: These are useful in anatomy because it gives you more information on where you are looking at in the body, and where it lies.
Explanation:
The body regions help you know what general place you are looking at.
The body directions help you know the connections between different organs, muscles, and bones, and where they are located via a given, such as anterior, posterior, medial, lateral, superior, anterior, etc.
The body plans are used to transect the body, in order to describe the location of structures or the direction of movement.
