Cell depolarization, or membrane depolarization, is a process that shifts the electrical charge distribution so that the cell is less negatively charged compared to the environment.

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

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.

Polarization in Neurons: At rest, a typical neuron has a resting membrane potential of approximately -70 mV. The term depolarization refers to a change in the neuronal membrane potential that makes it …

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

The initial depolarization was strong enough that enough voltage-gated sodium channels opened to cause more o Describe how the following stages occur in a neuron in terms of ion movement across …

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 channels ...

An electrocardiogram (ECG) records the flow of electrical current on three distinct waves. Explore the purpose of an ECG, the three wave types, and...

In the cardiac cycle, atrial contraction is followed by ventricular contraction. Answer and Explanation: 1 The correct answer is d. Ventricular depolarization occurs after atrial depolarization. The action …

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