Neuronal Signaling: Action Potentials and Conduction

This lecture covers the terminology associated with changes in the membrane potential, including depolarization, hyperpolarization, and repolarization. It explains how different channel types in the nervous system transmit electrical signals over short and long distances, such as graded potentials and action potentials. The lecture also delves into the generation, propagation, and time course of action potentials, as well as refractory periods that limit their frequency. Furthermore, it discusses factors influencing the conduction speed of action potentials, the main sources of bioelectrical signals, and various types of bioelectric signals like ENG, EMG, EOG, ECG, ERG, and EEG. The lecture concludes with an overview of synaptic currents, volume conduction, and different types of neural signals.