Delve into the intricacies of neuronal electrical activity in this comprehensive 57-minute lecture on resting membrane, graded, and action potentials. Explore the fundamental concepts of resting membrane potential, including the role of leaky potassium channels and the constant battle of ion concentrations. Examine graded potentials and their significance in neuronal communication, focusing on temporal and spatial summation. Investigate the generation and propagation of action potentials, including the crucial repolarization phase. Gain a thorough understanding of the absolute refractory period and its impact on neuronal signaling. Enhance your knowledge of neurobiology through this in-depth exploration of the electrical properties of neurons.