LEONARDO DA VINCI (VINCI 1452-AMBOISE 1519)
The muscles of the upper spine
c.1510-11RCIN 919015
The page shows five stages of dissection from superficial (upper right) to deep (lower left). This is a complex and intricately layered region, and Leonardo has exaggerated the thickness and distinctness of the muscle bodies for clarity. Conversely, at lower right is a ‘thread diagram’, in which every muscle is reduced to a thread along its central line of force, to allow the entire three-dimensional system to be captured in a single drawing.
watermark: Unidentified