After depolarization, the change in membrane potential triggers voltage-gated potassium channels to open. Due to the electrochemical gradient for potassium, potassium rushes out of the cell.

Get an overview of cell depolarization in our informative video lesson. Learn its properties and how it differs from repolarization, then take a quiz to review.

Learn about action potential and how to draw an action potential graph with depolarization and repolarization points. Understand what happens during depolarization.

Learn about the neuron diagram, structure, and function. Discover and discuss the meaning of dendrites, axon, membrane polarization, membrane depolarization, and synapses.

Learn about the relative refractory period in a neuron. Understand the steps of generating an action potential and why the refractory period is important.

Membrane Depolarization: The depolarization of the axon membrane of a neuron occurs when the inside of the axon becomes more positive (i.e. a value greater than -70 mV). Answer and …

Cardiac muscle has to contract to pump blood throughout the vascular system. This lesson covers the dynamics and physiological processes regulating cardiomyocyte contraction and the ion …

Explore the different types of summation in biology. Learn the definition of summation. Discover the differences between spatial summation and temporal summation.

A. resting membrane potential B. hyperpolarization C. depolarization D. repolarization E. more than one of the answer Fill in the blank: Depolarization is a _ in resting membrane potential …

Which of the following situations occurs in electrically excitable cells? A. When N a + ion channels open, K + ion channels close. B. The sodium-potassium exchange pump moves sodium into …