How to Draw Deltoids - Anatomy for Artists

The deltoid is the shoulder muscle on your upper arm. Learn about its three heads and how to draw it in this anatomy lesson! Extended lesson at The deltoid is a three-headed muscle, with fibers coming from the clavicle, acromion, and scapula and going to the humerus. I’ll explain the anatomy behind this complicated muscle as well as how to draw and invent it from your imagination. The more complicated your subject matter is, the more important it is to focus on simple structure an