Here we see a couple of illustrations from an early 20th century posture book, educating us on the right and wrong way to sit at a sewing machine. Either way, just make sure you're naked and cut in half.
There's plenty of this sort of information out there today for modern desk workers, but contemporary posture pals generally hold back on the wholesale Mortal Komabt-esque bisection. Here we see the the woman's viscera and organs visible, driving home a simple message: Sit up straight, otherwise you'll displace your organs and twist your spine.
Artatomical is a continuing exploration of that place where anatomy and art converge, sometimes in the form of medical illustration.