- Electric potentials in neurons and other cells are created by ionic concentration differences across semipermeable membranes.
- Stimuli change the permeability and create action potentials that propagate along neurons.
- Myelin sheaths speed this process and reduce the needed energy input.
- This process in the heart can be measured with an electrocardiogram (ECG).
the transport of electrical signals by nerve cells
electrical effects in and created by biological systems
property of a membrane that allows only certain types of ions to cross it
usually abbreviated ECG, a record of voltages created by depolarization and repolarization, especially in the heart