The curve created when the thumb touches the pinky.
Think of the upper arm as a cylinder, the elbow as a hinge, and the palm as a flexible box. Conclusion anatomy for sculptors arm and hand in motion pdf free
On the back of the hand, these become visible as rigid lines when the fingers are flared or under tension. The curve created when the thumb touches the pinky
The bony bump on the pinky side of the wrist. Note that this stays stationary while the radius (thumb side) rotates around it. 2. Pronation and Supination: The Great Twist The bony bump on the pinky side of the wrist
The curve from the wrist to the fingertips.
Mastering the anatomy of the arm and hand requires moving beyond static charts. By focusing on how the radius rotates over the ulna and how the arches of the palm compress during movement, you can create sculptures that feel like they are caught in a moment of real action.
When a hand is in motion—say, pointing or grasping—muscles don't just move; they change volume.