Student Lectures - All lectures - Mathematical Physiology, Lecture 3: The Nernst potential and the resting potential - 4th yr lecture

In the third lecture from her 4th year Mathematical Physiology course, Christiana Mavroyiakoumou explains how moving molecules against a chemical gradient requires energy. Such a process is known as an active transport mechanism. One of the most important examples is the sodium–potassium pump, which pumps sodium ions out of the cell against a steep electrochemical gradient, while pumping potassium ions in. To understand how this works, we will also talk about the Nernst potential and the resting potential. You can watch other lectures in the course here: https://www.youtube.com/playlist?list=PL4d5ZtfQonW24_qWt3g_TN1ttC0SWhEjF You can also watch many other student lectures via our main Student Lectures playlist (also check out specific student lectures playlists): https://www.youtube.com/playlist?list=PL4d5ZtfQonW0A4VHeiY0gSkX1QEraaacE All first and second year lectures are followed by tutorials where students meet their tutor in pairs to go through the lecture and associated problem sheet and to talk and think more about the maths. Third and fourth year lectures are followed by classes.