BMEN90033 2026: Action Potential Dipole — 3D Visualisation
Depolarised region
Resting tissue
Depolarisation dipole (+x)
Repolarisation dipole (−x)
Intracellular current
Electrode A (+)
Electrode B (−)
Arrows show the extracellular field (viridis colourmap) from both dipoles.
Orange arrows show intracellular current between wavefronts. The plot shows
VA − VB over time.