Cell Membrane Potential and Ion Balance

In this episode, we explore stimulants and cognitive-enhancing drugs, medications used to improve alertness, attention, memory, and cognition. You’ll learn how commonly used agents such as amphetamines, methylphenidate, modafinil, caffeine, donepezil, rivastigmine, galantamine, a ...  Show more

Why does a patient on furosemide end up needing a potassium supplement? In this episode we walk the length of the nephron— proximal tubule, loop of Henle, distal convoluted tubule, and collecting duct—and trace exactly how each segment reabsorbs and secretes to keep sodium, water ...  Show more

This MCAT Basics podcast covers biological membranes. First, the podcast introduces a few topics regarding membranes: what they are, how they are formed, their presence in the cell, and cell-to-cell junctions. Second, it addresses transport through the membrane, including simp ...

In this episode of MCAT Basics, we’ll cover Electrochemistry. We start with the role of salt bridges in electrochemical cells and cover the intricacies of cell notation. We’ll also discuss how ions maintain charge balance, the importance of reduction and oxidation potentials, ...

In this episode, we focus on biosignaling and cover how cells communicate through systems like voltage-gated and ligand-gated ion channels, using real-world examples such as neuronal signaling and muscle contraction. We also break down the role of enzyme-linked receptors, specifi ...  Show more

In this episode, Dr Matt and Dr Mike discuss how the nervous system allows us to walk, talk, smell, taste, hear, and feel! This episode is about the electrical and chemical signals that the body sends called action potentials!For a video on this topic we suggest that you watch: A ...  Show more