We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What Is Ventricular Action Potential?

By Erik J.J. Goserud
Updated May 17, 2024
Our promise to you
WiseGeek is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At WiseGeek, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

The nervous system is responsible for communicating important information among cells, structures, and systems of the body. Additionally, the nervous system acts as the liaison between the environment and the body. An action potential is an electrical event responsible in part for the communicated information. A ventricular action potential refers to this event occurring specifically in the ventricles of the heart. This type of action potential is unique from others, the culmination of which is responsible for the beating of the heart.

The human heart allows nutrient-rich blood to be distributed throughout the body in a way that makes life possible. This movement of blood requires the heart to act as a pump, changing intensity and frequency according to the dynamic needs of the body. This beating relies on the ventricular action potential. An action potential can be thought of as an impulse sent down a nerve, which causes a reaction in the body.

Most action potentials occur due to a stimulus, or triggering event. This can come in the form of an external force or an internal initiation. This usually causes a sequence of complex events, involving ionic exchange and changes in charge. Once a charge reaches a particular level, known as threshold, an action potential occurs. This action potential can cause or inhibit action potentials in proximal nerves, eventually causing the body to act in a desired way.

It is important to note that a ventricular action potential and action potentials in general need to culminate for anything to be accomplished. What this means is action potentials are virtually constant. Only significant increases or decreases in action potential volumes cause change.

The ventricular action potential is a unique specimen in that it does not require a stimulus to fire. This characteristic is unique to the heart as the entire cardiac contraction is dependent on controlling nodes, which fire in intervals, causing action potentials to travel throughout the organ. This electrical stimulation caused by action potentials starts at the top of the heart, where the atria are located, and ends in the ventricular region.

The fact that the electrical impulses move from top to bottom rather than in a uniform fashion allows different chambers to contract at different times. This is no accident because all chambers simultaneously contracting would counteract each other. By allowing the atria to contract first, the ventricles fill with blood, followed by ventricular action potential and ventricular contraction, forcing blood into the body. This general concept of ventricular action potential illustrates the electrical manner in which the nervous system operates.

WiseGeek is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Discussion Comments
WiseGeek, in your inbox

Our latest articles, guides, and more, delivered daily.

WiseGeek, in your inbox

Our latest articles, guides, and more, delivered daily.