In this episode of Physiology Roundtable, we focus on one of the most critical aspects of cell function: the plasma membrane. Often underestimated, this dynamic structure governs transport, signaling, and homeostasis. Join us as we explore how gradients, ion channels, and membrane potentials shape everything from nerve impulses to nutrient absorption. 🎯 Learning Objectives: By the end of this episode, listeners will be able to: Describe the structure and function of the plasma membrane and its components. Explain how gradients and membrane potentials are established and maintained. Identify different types of membrane transport: passive, facilitated, active, and vesicular. Understand the physiological significance of ion channels and membrane excitability.