Most organs get two autonomic nerve supplies that pull in opposite directions — sympathetic (“fight or flight”) and parasympathetic (“rest and digest”). Tap an organ to compare.
Eyes
Sympathetic vs parasympatheticdual innervation
Pick an organ
⚡ Sympathetic
🌿 Parasympathetic
📷 Reference image
A real labeled figure to compare with the interactive above.
The Two Divisions — OpenStax, CC BY 3.0 (via Wikimedia Commons)
